Asbestos Linoleum

Asbestos Linoleum at a Glance
Resilient flooring exposure reference
Peak Production Era	1948–1986
Typical Asbestos Content	10–30% in felt backing; 6–10% in tile body
Dominant Fiber Type	Chrysotile
Major U.S. Manufacturers	Armstrong World Industries; Congoleum Corporation; Kentile Floors
Armstrong Trust Fund	Approximately $2.1 billion
Congoleum Bankruptcy	Chapter 11 filed 2003
Federal Status	Not covered by 1989 EPA ban (vacated for flooring); chrysotile uses phased out 2024
Highest-Risk Activities	Removal, scraping, sanding, demolition
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Executive Summary

Asbestos linoleum is the common shorthand for several distinct categories of resilient floor covering — true linoleum, vinyl composition tile (VCT), vinyl asbestos tile (VAT), and sheet vinyl flooring with asbestos-impregnated felt backing — that incorporated chrysotile asbestos fiber during manufacture from roughly the late 1940s through the mid-1980s. The fiber appeared most heavily in the felt or paper backing layer that gave sheet goods their dimensional stability, and in the tile body itself for vinyl asbestos tile. Armstrong World Industries and Congoleum Corporation dominated the U.S. resilient flooring market through this period, producing branded asbestos-containing product lines that were installed in tens of millions of American homes, schools, hospitals, naval vessels, and commercial buildings.

Installation, repair, and removal of asbestos-containing floor coverings released mesothelioma-causing fibers into the air at concentrations sufficient to expose flooring installers, renovation contractors, building maintenance staff, janitorial workers, HVAC technicians working through floors, and homeowners performing do-it-yourself renovation. Naval personnel and shipyard workers encountered asbestos-backed sheet flooring extensively, as the U.S. Navy specified resilient flooring with felt backing for berthing, mess, and office spaces aboard combat ships and auxiliaries. The exposure history is well-documented in industrial hygiene literature and forms the basis for thousands of trust fund claims processed each year against Armstrong, Congoleum, and other flooring trusts.

At a Glance

• Product categories: True linoleum, vinyl asbestos tile (VAT), vinyl composition tile (VCT), and sheet vinyl flooring with asbestos-impregnated felt backing
• Peak U.S. production era: Approximately 1948 through 1986
• Dominant fiber type: Chrysotile asbestos, incorporated into the felt backing layer at 10–30% by weight and into the tile body at 6–10% by weight
• Major manufacturers: Armstrong World Industries, Congoleum Corporation, and Kentile Floors led the U.S. market, with multiple regional manufacturers also producing asbestos-containing flooring
• Signature field identifier: The 9-inch by 9-inch nominal tile square is the characteristic VAT format and a strong indicator that a tile in place likely contains asbestos
• Bankruptcy trusts: Armstrong World Industries Asbestos Personal Injury Settlement Trust funded at approximately $2.1 billion; Congoleum Plan Trust established following 2003 Chapter 11 filing
• Federal status: Vinyl-asbestos floor tile was excluded from the 1989 EPA TSCA ban after the rule was vacated in Corrosion Proof Fittings v. EPA (5th Cir. 1991) and remains technically lawful to manufacture in the United States today
• Highest-risk activities: Removal of installed flooring, scraping cutback adhesive from subfloors, sanding or grinding adhesive residue, and demolition of unidentified pre-1980 flooring
• Most-exposed occupations: Flooring installers and floor layers, renovation and demolition contractors, building maintenance and custodial staff, naval personnel and shipyard workers, and do-it-yourself homeowners performing renovation in pre-1980 housing stock
• Current regulation: OSHA construction industry asbestos standard (29 CFR 1926.1101); EPA NESHAP (40 CFR Part 61 Subpart M); state-level asbestos regulations governing renovation, demolition, and disposal

Key Facts

Key Facts: Asbestos in Resilient Floor Coverings

Asbestos content in tile body: Vinyl asbestos tile typically contained 6–10% chrysotile by weight; some product lines contained up to 25% asbestos in the cutback (black) adhesive used for installation Asbestos content in sheet vinyl felt backing: Backing felt incorporated chrysotile at approximately 10–30% by weight depending on product line and manufacturing date Installed base: Asbestos-containing resilient flooring was installed in approximately 30% of American homes during the peak production era Removal fiber concentrations: Aggressive removal of installed flooring routinely generates respirable fiber concentrations exceeding OSHA's permissible exposure limit (0.1 fibers per cubic centimeter) by one to two orders of magnitude Armstrong World Industries trust funding: Approximately $2.1 billion under the Armstrong Asbestos Personal Injury Settlement Trust Plan of Reorganization confirmed 2006 Congoleum bankruptcy: Filed Chapter 11 in December 2003; reorganization plan established the Congoleum Plan Trust Federal presumption: OSHA presumes that asphalt and vinyl floor covering installed before 1981 contains asbestos absent rebuttal by laboratory testing EPA NESHAP threshold: Non-friable Category I floor tile is reclassified as regulated ACM once it is to be sanded, ground, cut, or abraded — operations characteristic of removal work What Is Asbestos Linoleum? The term "asbestos linoleum" is used loosely in consumer and litigation contexts to describe several technically distinct flooring categories. Understanding the distinction matters for product identification, exposure assessment, and trust fund claim accuracy. True Linoleum (Linseed Oil and Cork) True linoleum, the original product patented by Frederick Walton in 1860, is manufactured from oxidized linseed oil, pine rosin, ground cork dust, wood flour, and mineral pigments pressed onto a jute or burlap backing. True linoleum manufactured before approximately 1950 generally did not contain asbestos in the wear layer itself. Some early-twentieth-century linoleum products did incorporate a thin asbestos-paper underlayment glued or laminated beneath the jute backing for fire resistance, but the asbestos content of true linoleum proper is much lower than what appeared in later vinyl products. Production of true linoleum in the United States declined sharply after World War II as cheaper, more durable vinyl-based alternatives took over the resilient flooring market. By the 1960s, most "linoleum" sold in American hardware stores was actually sheet vinyl with felt backing — a product the trade and the public both continued to call linoleum despite the change in chemistry. Sheet Vinyl with Asbestos-Backed Felt The dominant form of "asbestos linoleum" in twentieth-century homes is sheet vinyl flooring laminated to a felt or paper backing layer that contained chrysotile asbestos. The backing was typically a felt paper saturated with asphalt or other binders, into which chrysotile fiber was incorporated at concentrations ranging from approximately 10% to 30% by weight depending on the product line and date of manufacture. The backing gave the sheet good its dimensional stability and tear resistance, allowing flooring crews to roll, cut, fit, and trim large rolls in residential and commercial settings. Armstrong World Industries marketed extensive sheet vinyl product lines through this era, with felt-backed sheet goods sold under multiple trade names. Congoleum Corporation — the successor in interest to Nairn Linoleum, one of the original American flooring manufacturers — sold sheet vinyl under the Congoleum, Nairon, and related labels through the 1970s. Vinyl Asbestos Tile (VAT) Vinyl asbestos tile, distinct from sheet flooring, is a press-formed floor tile in which chrysotile asbestos was incorporated into the polyvinyl chloride (PVC) tile body itself rather than restricted to a separate backing layer. The U.S. resilient-flooring industry produced vinyl asbestos floor tiles in volume from approximately 1952 through 1986, with peak production in the 1960s and early 1970s. Asbestos content of the tile body was typically 6% to 10% by weight, though some product lines and the cutback (black) mastic adhesive used to glue tiles to the subfloor contained substantially higher concentrations of chrysotile — up to 25% in some adhesive formulations. VAT was manufactured most commonly in 9-inch by 9-inch nominal squares prior to 1980, with 12-inch squares becoming more typical in the post-asbestos era. The 9×9 inch tile size is a strong field signal that a tile is likely to contain asbestos and should be presumed an asbestos-containing material absent laboratory confirmation. Armstrong's Excelon brand and Kentile Floors' product lines are among the most frequently identified VAT products in mesothelioma litigation. Asbestos Underlayment and Felt Backing Independent of the wear-surface flooring product itself, many installations incorporated a separate sheet of asbestos-containing underlayment paper laid between the subfloor and the new flooring. This underlayment, often referred to as "felt underlayment" or "asbestos paper underlay," provided a smooth surface for the visible flooring and additional fire resistance. It is a separate exposure vector during removal work, particularly when older flooring is scraped from the subfloor — the underlayment sheet typically comes up in fragmented, friable condition. When Did Manufacturers Use Asbestos in Linoleum and Floor Coverings? The period of intensive U.S. asbestos use in resilient flooring spans approximately 1948 to 1986, with regional and product-line variations. The 1989 U.S. Environmental Protection Agency rule under the Toxic Substances Control Act (TSCA) attempted a phased ban on most asbestos-containing products, but the rule was substantially vacated in 1991 by the Fifth Circuit Court of Appeals in Corrosion Proof Fittings v. EPA. The court left several categories — including vinyl-asbestos floor tile and roofing felt — outside the federal ban, meaning manufacturers were not legally prohibited from continuing to produce these products in the United States even after 1989. In practice, however, most major U.S. flooring manufacturers had already phased out asbestos use by the mid-1980s in response to consumer demand and the growing wave of personal-injury litigation. By 1986, Armstrong, Congoleum, and other major brand owners had reformulated their flagship product lines without asbestos fiber. Some imported flooring and aftermarket adhesives continued to contain asbestos into the 1990s. The U.S. Environmental Protection Agency's March 2024 final rule on chrysotile asbestos under the amended Toxic Substances Control Act prohibits the manufacture, processing, and distribution of chrysotile in several remaining product categories — including sheet gaskets, automotive friction products, and chlor-alkali diaphragms — with phase-out schedules ranging from six months to twelve years. The 2024 rule does not directly address vinyl-asbestos floor tile because U.S. manufacturers had voluntarily discontinued the product more than three decades earlier; the regulatory significance for flooring is the agency's formal recognition that legacy asbestos in installed flooring poses "unreasonable risk" requiring management during renovation and demolition. How Does Asbestos Linoleum Expose Workers and Homeowners? Intact, undisturbed sheet vinyl with asbestos felt backing is generally regarded by federal regulators as posing lower immediate inhalation risk than friable insulation products such as thermal pipe lagging or sprayed fireproofing. The U.S. Occupational Safety and Health Administration (OSHA) classifies most floor coverings as non-friable Category I asbestos-containing material (ACM), meaning the asbestos is bound in a matrix that does not readily release fibers under normal conditions. This classification, however, applies only to undamaged flooring in stable service. Once the floor covering is cut, drilled, sanded, scraped, broken, or demolished, the matrix is compromised and respirable chrysotile fiber is released into the breathing zone. Installation Exposure Flooring installation routinely required cutting sheet vinyl and tile to fit room dimensions, doorways, plumbing fixtures, and irregular layouts. Hand-cutting with utility knives, power-shearing, and grinding to bevel cut edges all generate respirable fiber from the felt backing or tile body. Installers historically performed this work without respiratory protection, often in confined residential spaces with poor ventilation. Trim and offcut handling — sweeping waste material into trash bags or disposal bins at the end of a job — produced additional respirable dust. Application of the black mastic adhesive used to bond sheet goods and tiles to the subfloor created a parallel exposure pathway, as the adhesive itself contained chrysotile fiber. Notching and troweling adhesive over a freshly prepared subfloor generated airborne fiber from the adhesive matrix. Removal and Renovation Exposure Removal and renovation of asbestos-containing floor coverings is the highest-intensity exposure scenario associated with this product category. Tear-out work — scraping old tile from the subfloor, ripping up sheet vinyl with the backing layer adhered to wood or concrete, mechanically grinding or sanding residual adhesive off the subfloor surface — directly aerosolizes the asbestos matrix and produces respirable fiber concentrations that routinely exceed OSHA's permissible exposure limit (PEL) of 0.1 fibers per cubic centimeter by one to two orders of magnitude under aggressive removal conditions. Renovation contractors, homeowners performing do-it-yourself remodels, and demolition crews working in older buildings without prior asbestos surveys face the most severe exposures. The U.S. Department of Labor and OSHA presume that resilient flooring installed before 1980 contains asbestos unless laboratory testing demonstrates otherwise, and contractors are required to treat such material accordingly during disturbance. Deterioration and Maintenance Exposure Asbestos-containing floor covering in long-service condition can deteriorate to the point that the binder matrix no longer effectively immobilizes the fiber. Wear, cracking, water damage, and adhesive failure can leave the felt backing or tile body friable to a degree not contemplated when the flooring was originally installed. Janitorial and maintenance staff stripping, waxing, buffing, or repairing damaged sections of older floors can generate respirable fiber. Buffing and burnishing operations are of particular concern because they apply mechanical energy directly to the wear surface. Bystander and Take-Home Exposure Workers performing flooring installation, removal, or repair in occupied buildings exposed bystanders who were present in the same airspace. Office workers, students in schools, hospital patients, and family members in residences disturbed by flooring work have developed mesothelioma decades later from incidental bystander exposure during these projects. Take-home exposure — fiber carried home on installers' work clothing, contaminating laundry and household dust — has produced documented mesothelioma diagnoses in spouses and children of flooring workers. Who Was Exposed to Asbestos Linoleum? The occupational populations most heavily exposed to asbestos-containing resilient flooring include the following groups. Flooring Installers and Floor Layers Professional flooring contractors who installed, removed, and repaired vinyl-asbestos tile, sheet vinyl with asbestos felt backing, and the associated mastic adhesives over the course of decades-long careers are the highest-exposure occupational group within this product category. International Union of Bricklayers and Allied Craftworkers (BAC) floor coverers, members of the United Brotherhood of Carpenters' floor covering locals, and non-union independent installers all faced regular exposure through the 1980s. Renovation Contractors and Demolition Crews General contractors and specialty demolition crews working in older residential, commercial, and institutional buildings continue to encounter installed asbestos flooring as those buildings age into renovation cycles. Tear-out and refit projects expose workers to flooring that has been in service for forty or more years. Building Maintenance, Janitorial, and Custodial Staff Custodial staff in schools, hospitals, public buildings, and large commercial properties performed routine floor-care operations on installed vinyl-asbestos tile and felt-backed sheet vinyl through the 1980s and into the 1990s. Stripping and waxing operations were standard maintenance procedures, performed without respiratory protection and often without knowledge that the floor under treatment contained asbestos. Naval Personnel and Shipyard Workers The U.S. Navy specified asbestos-containing resilient floor covering for berthing compartments, messes, offices, and other interior spaces aboard combat and auxiliary vessels through the 1970s. Sailors performed routine flooring maintenance as part of shipboard cleaning details; shipyard workers installed and replaced flooring during construction, overhaul, and conversion. Navy and merchant marine veterans diagnosed with mesothelioma frequently identify shipboard flooring among their cumulative exposures. Homeowners Performing Do-It-Yourself Renovation Homeowners removing kitchen, bathroom, basement, or laundry-room flooring during renovation projects are a significant non-occupational exposure population. Pre-1980 housing stock — the majority of single-family homes still standing in older American cities — is presumed to contain asbestos in any original flooring. Do-it-yourself tear-out, particularly when accomplished without dust suppression or respiratory protection, can produce exposures comparable to professional removal work. HVAC and Plumbing Trades Working Through Floors Tradesmen cutting through finished floors to access underlying joists, ductwork, or piping — HVAC technicians, plumbers, and electricians performing remodel work — disturb both the flooring and any asbestos-containing underlayment beneath it. Sawing or coring through resilient flooring generates respirable fiber even when the project scope did not contemplate flooring work. Major Manufacturers and Their Bankruptcy Trusts Several of the largest U.S. resilient flooring manufacturers entered Chapter 11 bankruptcy reorganization between 2000 and 2010 under the weight of asbestos personal-injury litigation, establishing trust funds under section 524(g) of the Bankruptcy Code to channel current and future asbestos claims. Armstrong World Industries Armstrong World Industries, Inc. — historically the dominant U.S. manufacturer of resilient flooring — filed for Chapter 11 protection in December 2000 citing asbestos personal-injury liability. The Armstrong World Industries Asbestos Personal Injury Settlement Trust was established as part of the reorganization plan, funded at approximately $2.1 billion to pay current and future asbestos claims. Armstrong's product lines covered by the trust include the Excelon vinyl asbestos floor tile, asbestos-backed sheet vinyl, and asbestos-containing felt underlayment. The Armstrong trust has historically been one of the more reliably paying flooring trusts. Trust distribution procedures and current payment percentages are published annually in the trust's claims handler reports. Congoleum Corporation Congoleum Corporation, a successor to the historic Nairn Linoleum company, filed for Chapter 11 in December 2003 citing asbestos liability. The Congoleum Plan Trust was established under the reorganization to handle asbestos claims arising from felt-backed sheet vinyl, vinyl asbestos tile, and related Congoleum and Nairn product lines manufactured through the asbestos era. Congoleum's bankruptcy is among the longer and more complicated section 524(g) proceedings in the trust system, with multiple plan iterations between filing and trust funding. The trust pays both expedited and individual review claims and remains active for new claim filings. Kentile Floors Kentile Floors, Inc., a major manufacturer of vinyl asbestos floor tile through the mid-twentieth century, operated until the company's closure in 1992. Kentile-branded VAT tile is frequently identified in mesothelioma cases and is a recognized product-of-origin in the litigation system, with claims processed through successor entity arrangements and historical insurance coverage. Other Flooring-Related Trusts Trust funds for Johns-Manville Corporation, Owens Corning, and other diversified asbestos manufacturers cover flooring-adjacent products including the asphalt-cutback adhesives used in floor tile installation, fiber-reinforced floor underlayments, and asbestos-containing floor-prep compounds. Workers with documented flooring exposure may have valid claims against multiple trusts in addition to the dedicated flooring trusts. Regulatory History of Asbestos in Floor Coverings The federal regulatory record on asbestos in resilient flooring is fragmented across multiple agencies and time periods. Consumer Product Safety Commission The U.S. Consumer Product Safety Commission (CPSC) under the Federal Hazardous Substances Act prohibited consumer wall-patching compounds and artificial fireplace embers containing intentionally added asbestos in 1977 (16 CFR 1304 and 1305). The CPSC did not issue a parallel ban on resilient floor coverings, in part because floor coverings were classified as building materials regulated by other agencies rather than as consumer products under the agency's primary jurisdiction. EPA TSCA Phase-Out Rule (1989) and the Corrosion Proof Fittings Decision (1991) The U.S. Environmental Protection Agency in July 1989 promulgated a comprehensive phase-out rule under the Toxic Substances Control Act prohibiting most asbestos-containing products. The rule contemplated a three-stage phase-out through 1996. The Fifth Circuit Court of Appeals in Corrosion Proof Fittings v. EPA, 947 F.2d 1201 (5th Cir. 1991), vacated most of the rule on procedural grounds. The vacated portion left vinyl-asbestos floor tile, asbestos-cement pipe and shingle, roofing felt, brake pads and other friction materials, and gaskets outside the federal ban. The 1989 rule's surviving provisions prohibited only "new uses" of asbestos in products not historically containing it — a much narrower restriction than originally intended. The legal consequence of Corrosion Proof Fittings is that vinyl-asbestos floor tile and asbestos-containing sheet vinyl have remained technically lawful to manufacture and import into the United States since 1989, although commercial production by major domestic manufacturers had already wound down by that date. EPA Chrysotile Risk Management Rule (2024) In March 2024, the EPA finalized a rule under the amended Toxic Substances Control Act prohibiting chrysotile asbestos in several remaining product categories, including aftermarket automotive brakes and linings, sheet gaskets, oilfield brake blocks, other vehicle friction products, certain consumer gaskets, and chrysotile-diaphragm chlor-alkali production. The 2024 rule does not specifically address vinyl-asbestos floor tile — U.S. manufacturers had ceased production decades earlier — but it constitutes the first comprehensive federal prohibition on chrysotile under TSCA since the 1989 rule was vacated. The November 2024 EPA Part 2 risk evaluation for legacy asbestos uses, including legacy asbestos installed in homes and commercial buildings, concluded that legacy asbestos in installed building materials poses "unreasonable risk to human health" — a finding that establishes the regulatory framework for future management requirements during renovation and demolition. OSHA Asbestos Standard (29 CFR 1926.1101) The OSHA construction industry asbestos standard (29 CFR 1926.1101) governs disturbance of asbestos-containing material in construction work, including flooring tear-out and renovation. The standard requires employers to presume that thermal system insulation and surfacing materials installed before 1981, and asphalt and vinyl floor covering installed before 1981, contain asbestos unless laboratory testing rebuts the presumption. Removal work classified as Class II (removal of non-thermal system insulation ACM, including flooring) is subject to engineering controls, respiratory protection requirements, regulated work areas, and worker training and medical surveillance obligations. EPA NESHAP (40 CFR Part 61 Subpart M) The National Emission Standards for Hazardous Air Pollutants (NESHAP) asbestos rule administered by EPA requires notification before renovation and demolition of facilities containing regulated asbestos-containing material (RACM). Category I non-friable floor tile is generally excluded from RACM classification unless the tile is to be sanded, ground, cut, or abraded — operations which convert it to friable material subject to NESHAP requirements. Demolition contractors who fail to properly identify and segregate asbestos flooring routinely incur NESHAP enforcement actions. Legal Compensation for Asbestos Linoleum Exposure Workers and family members diagnosed with mesothelioma or other asbestos-related diseases following exposure to asbestos-containing resilient flooring have multiple compensation pathways available. Asbestos Bankruptcy Trust Claims The Armstrong World Industries Asbestos Personal Injury Settlement Trust, the Congoleum Plan Trust, and other flooring-related section 524(g) trusts pay current asbestos personal injury claims under published Trust Distribution Procedures (TDPs). Claims may proceed through Expedited Review — typically processed in 90 days against a preset scheduled payment value — or Individual Review, which takes longer but can yield higher payments for cases with strong product identification and severe disease presentation. Most flooring exposure plaintiffs qualify for multiple trusts simultaneously because typical careers in flooring, renovation, or building maintenance produced exposure to materials from many manufacturers. A flooring installer with thirty years of field experience may have valid claims against ten or more trusts based on documented work with their product lines. Civil Lawsuits Against Non-Bankrupt Defendants Asbestos personal injury plaintiffs frequently file civil lawsuits against non-bankrupt defendants — including premises owners, contractors, and product manufacturers that did not enter bankruptcy reorganization — in addition to filing trust claims. Plaintiffs may recover from both trusts and civil defendants for the same disease, although trust payments are subject to setoff against civil judgments in some jurisdictions. Product Identification Evidence Resilient flooring product identification in litigation relies on a combination of evidence sources: building specifications and construction records identifying installed flooring brands; remaining in-place flooring samples submitted for polarized light microscopy (PLM) and transmission electron microscopy (TEM) analysis; deposition testimony from the plaintiff and coworkers identifying brand names, container labels, and supplier identities encountered during careers; and union records, employer payroll documentation, and military service records placing the plaintiff at job sites where specific products were installed. The 9×9 inch vinyl asbestos tile footprint, the felt backing visible on the underside of sheet vinyl, and characteristic Armstrong, Congoleum, and Kentile pattern catalogs are common identifying features. Industrial hygienists and product identification experts retained in mesothelioma cases routinely examine job-site evidence and brand catalogs of the relevant era to establish identification. Compensation Available Average mesothelioma compensation from combined trust and civil sources nationally exceeds $1 million for plaintiffs with documented product identification and adequate liability proof. Individual recoveries vary widely with disease severity, exposure history, jurisdiction, and the specific manufacturers identified. For navigation of the trust system and case evaluation, plaintiffs and families typically work with experienced asbestos personal injury counsel who handle product identification, trust filings, and civil litigation as an integrated case package. Frequently Asked Questions Does linoleum contain asbestos? Many flooring products commonly called "linoleum" — including vinyl asbestos tile, sheet vinyl with felt backing, and the cutback adhesive used to install them — contained chrysotile asbestos when manufactured in the United States from approximately the late 1940s through the mid-1980s. True linseed-oil linoleum manufactured before 1950 generally did not contain asbestos in the wear layer itself, though some products incorporated asbestos paper underlayment. OSHA presumes that all resilient flooring installed in the United States before 1981 contains asbestos absent laboratory testing to the contrary. Is asbestos linoleum dangerous? Intact, undisturbed asbestos-containing floor covering in good condition is generally classified as non-friable Category I asbestos-containing material and presents lower immediate inhalation risk than friable insulation. Once the flooring is cut, drilled, sanded, scraped, broken, or demolished — or once it deteriorates from age, water damage, or wear — the asbestos matrix is compromised and respirable chrysotile fiber is released. Removal and renovation activities generate the highest measured airborne fiber concentrations, routinely exceeding OSHA's permissible exposure limit by one to two orders of magnitude. All inhalation of asbestos fiber carries some risk of mesothelioma and other asbestos-related disease; there is no scientifically established "safe" exposure threshold. When did manufacturers stop putting asbestos in linoleum and floor coverings? Major U.S. resilient flooring manufacturers, including Armstrong and Congoleum, had largely reformulated their core product lines without asbestos by 1986. The 1989 EPA TSCA phase-out rule attempted a comprehensive federal ban that was largely vacated in 1991 by Corrosion Proof Fittings v. EPA, leaving vinyl asbestos floor tile technically lawful to manufacture in the United States through the present. Major U.S. manufacturers nevertheless did not return to asbestos formulation after the mid-1980s. The March 2024 EPA chrysotile risk management rule prohibits chrysotile in several remaining product categories but does not directly address resilient flooring. How do I know if my floor has asbestos? Visual identification alone is unreliable, but several indicators are suggestive of asbestos content. Resilient flooring installed before 1981 should be presumed to contain asbestos under OSHA's construction standard absent laboratory testing. Nine-inch by nine-inch nominal tile squares are characteristic of the asbestos-era vinyl asbestos tile format. Visible felt or paper backing on sheet vinyl, particularly when paired with a cutback black mastic adhesive, is consistent with asbestos-era product. Definitive identification requires submitting a sample to an accredited asbestos analytical laboratory for polarized light microscopy or transmission electron microscopy. Homeowners and contractors should not collect samples without appropriate precautions — sampling itself can generate respirable fiber. What trust funds cover asbestos linoleum exposure? The Armstrong World Industries Asbestos Personal Injury Settlement Trust (approximately $2.1 billion funded) and the Congoleum Plan Trust are the two largest trusts dedicated specifically to resilient flooring exposure. Workers with documented exposure to vinyl asbestos tile, felt-backed sheet vinyl, asbestos paper underlayment, and floor tile adhesives may also have claims against the Johns-Manville Trust, the Owens Corning Trust, the Pittsburgh Corning Trust, and other major manufacturer trusts covering adjacent products. Most flooring-exposure plaintiffs qualify for multiple trusts simultaneously, with total recoveries typically aggregated across all qualifying funds. Related Pages Asbestos Products Database — comprehensive manufacturer and product reference Armstrong World Industries — flooring manufacturer profile Congoleum Corporation — flooring manufacturer profile Chrysotile asbestos — fiber type used in resilient flooring Mesothelioma — disease background Asbestos Trust Funds — section 524(g) trust system reference Secondary asbestos exposure — household and bystander pathways HVAC technicians — adjacent trade with flooring exposure Get Help Identifying Asbestos Flooring Exposure If you or a family member has been diagnosed with mesothelioma or another asbestos-related disease and worked with, installed, removed, or otherwise encountered asbestos-containing resilient flooring, identifying the specific products and manufacturers involved is the foundation of every successful trust fund claim and civil lawsuit. The product identification work is detailed and often requires investigation of building records, brand catalogs of the relevant era, and surviving in-place flooring samples. External Links Danziger & De Llano — Asbestos Exposure Lawyers U.S. Environmental Protection Agency — Asbestos U.S. Occupational Safety and Health Administration — Asbestos EPA Asbestos NESHAP Reference References