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Flammable Liquids
National Summary

This topic covers OSHA’s flammable liquids standard, which applies to any liquid with a flashpoint at or below 199.4° F (93° C). The term “combustible” has been deleted from the flamamble liquids regulation due to GHS revisions.

All employers who use or store flammable liquids must comply with OSHA’s standard, which includes details on constructing and locating storage areas, procedures to control and extinguish fires, and steps to prevent contact between flammable liquids and ignition sources. Employers whose employees work with flammable liquids must also comply with OSHA’s Hazard Communication standard for these substances.

For related resources and training materials, refer to the following topics:

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Interpretations Acceptability of storing Class II combustible liquids in DOT/NRTL approved polyethylene containers.[1910.106(d)(2)(i)] 08/02/2001National
Interpretations DOT Approved Gas Cans. 08/26/1996National
Interpretations Emergency drainage systems for flammable/ combustible liquids in industrial plants.[1910.106(e)(3)(iv)] 10/06/1992National
Interpretations Letter requesting a compliance determination of control device system used primarily in paint spray booth applications. 08/03/1995National
Interpretations Variance request. 06/07/1995National
Directives 07/12/1994 - STD 1-5.18A - Acceptance of U.S. Department of Transportaion Exemption 07/22/2003National
Directives 10/24/1980 - STD 1-5.14A - U.S. Department of Transportation (DOT) Exemption Which Allow Shipment of Combustible and Flammable Liquids in Polyethylene 07/16/2003National
Directives 10/30/1978 - STD 1-5.2 - Drainage, Dikes, and Walls for Aboveground Tanks (29 CFR 1910. 106(b)(2)(vii)) 07/09/2003National
Directives 10/301978 - STD 1-5.9 - 29 CFR 1910.106(a)(14), "Flashpoint" - Acceptable Method of Determining Flashpoints 07/07/2003National
Directives 11/09/1979 - STD 1-5.15 - 29 CFR 1910.106(e)(2)(ii)(b), Clarification of the Quantity of Liquid That May be Located Outside of an Inside Storage 07/09/2003National
Regulations 29 CFR § 1910.106 Flammable and combustible liquids  National
Regulations 29 CFR § 1910.109 Explosives and blasting agents  National
Regulations 29 CFR § 1910.110 Storage and handling of liquefied petroleum gases  National
Interpretations Above-ground 500-gallon polyethylene tank is unacceptable for storage of flammable and combustible liquids. 08/30/2001National
Interpretations Applicability of 29 CFR 1910.119 Process Safety Management (PSM) Standard to the Manufacture of Explosives Required Under 29 CFR 1910.109(k)(2)[1910.109] 11/08/1995National
Questions & Answers Are 5-gallon plastic gas cans OSHA-approved for storage and/or transportation of unleaded fuel? 09/28/2010National
Interpretations Are above ground tanks place of diking.(1910.106) 05/27/1993National
Questions & Answers Are small aerosol cans that are considered a medical/medicine exempt from OSHA 1910.106 storage requirements? Note: the product in question is not filled in the warehouse/manufacturing facility, but rather just stored for distribution. 11/02/2018National
Questions & Answers Are these two items required by OSHA and do they meet OSHA Standards?: a Justrite 08207 10.75" x 10" Metal Drum Funnel and an Eagle 1947 Safety Cabinet for Flammable Liquids, 2 Door Manual Close, 45 gallon, 65"Height, 43"Width, 18"Depth, Steel. 09/27/2019National
Questions & Answers Can wash bottles of flammable chemicals (acetone and isopropanol) be left out on countertops when not in use? Should these be kept in a hood or flammable cabinet even though it is very small quantities? 10/09/2018National
Questions & Answers Can we store pure methanol (methyl alcohol, MeOH) in a 5L container for laboratory use? 07/28/2015National
Interpretations Clarification of requirements for 1000 gallon diesel storage tank.[1926.152; 1926.155(h)] 06/09/2000National
Interpretations Clarification on how OSHA would address the use of natural gas or liquid propane gas used in an after-burner to remove volatile organic carbon (VOC) air contaminants. 02/13/1995National
Interpretations Compliance with NFPA 30 revisions in lieu of 1910.106.(1910.219) 07/18/1995National
Questions & Answers Do 1 gallon containers of Isopropyl Alcohol have to be stored in a flammable cabinet or flammable storage room? Can the be stored on general racking? 06/05/2017National
Questions & Answers Do you have a flammable gas purge procedure? 08/17/2015National
Questions & Answers Do you have general information on preventing dust explosions? 02/11/2008National
Questions & Answers Does an aerosol can of flammable brake cleaner need to be stored in a flammable cabinet at the end of the shift instead of leaving in out on the work table? 09/03/2009National
Training Tips Don't Flame Out!  National
Interpretations Double-walled tanks do not reduce the minimum separation distances for flammable and combustible liquids.[1910.106(f)(3)(i)] 07/07/2000National
Interpretations Fiberglass tanks for above and below ground storage of flammable and combustible liquids.(1910.106) 01/13/1993National
Interpretations Flammable and Combustible Liquid standard.(1910.106) 07/15/1993National
Policies Flammable Liquids  National
Regulatory Analysis Flammable Liquids  National
Safety Slogans Flammable Liquids  National
Checklists Flammable Liquids and Other Hazardous Materials Best Practices Checklist  National
Plans Flammable Liquids Plan  National
Checklists Flammable Liquids Regulatory Compliance Audit Checklist  National
Training Activities Flammable Liquids Safety Activity (Word)  National
Checklists Flammable Liquids Training Checklist for Employers  National
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