General Industry (29 CFR 1910)

Process Safety Management of Highly Hazardous Chemicals

Verified vs OSHA sources · 2026-10-05

29 CFR 1910.119

29 CFR 1910.119, Process Safety Management (PSM), is OSHA's rule for preventing catastrophic chemical releases: it applies when a process holds a listed highly hazardous chemical at or above its threshold, or 10,000 pounds of a flammable, and requires a 14-element program including process hazard analysis, mechanical integrity, and management of change.

29 CFR 1910.119 at a glance

What it requires: A 14-element process safety management program for processes with threshold quantities of highly hazardous chemicals
Who it covers: Employers with a listed highly hazardous chemical at or above its threshold, or 10,000 lb of a flammable liquid/gas
Key duty: Process safety information, process hazard analysis, operating procedures, mechanical integrity, and management of change
PHA cycle: The process hazard analysis must be revalidated at least every 5 years (1910.119(e)(6))
Max penalty (2026): $16,550 per serious violation; $165,514 per willful
The #1 confusion: PSM is triggered by a threshold quantity of a specific chemical, not by 'using chemicals' generally

What 29 CFR 1910.119 requires (plain English)

29 CFR 1910.119, Process Safety Management of Highly Hazardous Chemicals (PSM), is OSHA's rule for preventing catastrophic releases of toxic, reactive, flammable, or explosive chemicals. It applies to a process that contains a chemical listed in Appendix A at or above its threshold quantity, or 10,000 pounds or more of a flammable liquid or gas. Rather than a single control, PSM is a management system of 14 interlinked elements.

Those elements include compiling process safety information (chemical, technology, and equipment data); performing a process hazard analysis (PHA) by a method such as HAZOP or What-If; written operating procedures; employee training; contractor management; pre-startup safety reviews; mechanical integrity of critical equipment; a hot work permit program; management of change (MOC); incident investigation; emergency planning; and compliance audits. Employee participation in the PHA is required.

Two clocks drive PSM: the PHA must be updated and revalidated at least every five years, and a compliance audit must be conducted at least every three years. PSM overlaps with EPA's Risk Management Program (40 CFR Part 68), which uses the same threshold logic for offsite consequences, and it is closely related to OSHA's flammable-liquid (1910.106) and hot-work requirements. It is one of OSHA's most complex standards and a frequent source of high-gravity citations after a release.

The regulatory text

“The employer shall perform an initial process hazard analysis (hazard evaluation) on processes covered by this standard. The process hazard analysis shall be appropriate to the complexity of the process and shall identify, evaluate, and control the hazards involved in the process.”

29 CFR 1910.119(e)(1)

Key facts about 29 CFR 1910.119

PSM applies to processes with a listed highly hazardous chemical at or above its Appendix A threshold, or 10,000 lb of a flammable (1910.119(a)).
The standard is built on 14 interrelated elements, from process safety information to compliance audits.
A process hazard analysis must identify, evaluate, and control the hazards of the process (1910.119(e)(1)).
The PHA must be updated and revalidated at least every 5 years (1910.119(e)(6)).
Compliance audits of the PSM program are required at least every 3 years (1910.119(o)).
Management of Change must review changes to process chemicals, technology, equipment, and procedures before they are made (1910.119(l)).
PSM parallels EPA's Risk Management Program (40 CFR Part 68), which addresses offsite consequences of a release.

Scope: who 29 CFR 1910.119 applies to

Regulatory framework: General Industry (29 CFR 1910)
Citation reference: 29 CFR 1910.119
Enforcement status: In force and enforced
Jurisdiction: Federal OSHA (29 State-Plan jurisdictions may be stricter)

State-Plan states (e.g. California, Washington, Michigan) operate OSHA-approved programs that must be at least as effective as federal OSHA and frequently impose higher penalties or additional requirements. Confirm the rule as adopted in your state.

Key requirements of 29 CFR 1910.119

#	Employer obligation
1	Compile process safety information
2	Conduct process hazard analysis (PHA)
3	Develop written operating procedures
4	Train employees on process operations
5	Maintain mechanical integrity of equipment
6	Manage changes through Management of Change (MOC) process
7	Investigate incidents within 48 hours
8	Conduct compliance audits every 3 years

Summarized from the text of 29 CFR 1910.119. Always read the full regulation for the binding language.

Common Process Safety Management (PSM) violations

Deficiencies OSHA cites under 29 CFR 1910.119 include the ones below, in no particular order. Distinct deficiencies can be cited as separate items, and each serious item carries up to $16,550 (2026). Broader per-instance stacking exists but is a discretionary, case-by-case OSHA enforcement policy, not an automatic multiplier.

Incomplete or missing process safety information for the covered process (1910.119(d)).
No process hazard analysis, or a PHA not revalidated within 5 years (1910.119(e)).
Operating procedures absent, outdated, or not followed (1910.119(f)).
No mechanical integrity program for critical equipment (1910.119(j)).
Management of change not applied to a process modification (1910.119(l)).

PSM is triggered by a threshold quantity, not by 'using chemicals'

Employers sometimes assume PSM applies to any workplace with hazardous chemicals, or assume it never applies to them. Both are wrong. PSM is triggered specifically when a process contains one of the highly hazardous chemicals listed in Appendix A at or above its threshold quantity, or 10,000 pounds or more of a flammable liquid or gas, with narrow exceptions such as atmospheric-pressure fuel storage. Below the threshold, the 14-element program is not mandatory, though the General Duty Clause and standards like 1910.106 still apply. And PSM is not the same as HazCom (1910.1200): HazCom is worker right-to-know for all hazardous chemicals, while PSM is about preventing a catastrophic release from a specific covered process.

What OSHA inspectors look for

A compliance officer confirms the process meets a PSM threshold, then examines the process safety information, the process hazard analysis and its 5-year revalidation, operating procedures, the mechanical-integrity program, management-of-change records, and the 3-year compliance audit. Incomplete PHAs and missing management-of-change records are frequent findings.

Example: how a violation is cited

A plant modifies a reactor's piping without a management-of-change review, and the altered process releases a toxic gas. OSHA cites 1910.119(l) because changes must be evaluated before they are made: a classic PSM failure behind catastrophic releases, with willful penalties reaching $165,514.

Illustrative example, not a specific OSHA case.

Process Safety Management (PSM) compliance checklist

Use this to evaluate your compliance with 29 CFR 1910.119. Each item is a key requirement OSHA may verify during an inspection.

Determine whether any process meets the PSM threshold (Appendix A chemical at/above threshold, or 10,000 lb flammable).
Compile complete process safety information (chemical hazards, process technology, and equipment).
Conduct a process hazard analysis with an appropriate method and employee participation; revalidate at least every 5 years.
Write and maintain operating procedures, and train employees and contractors on the process.
Establish mechanical integrity, pre-startup safety review, hot work permit, and management-of-change programs.
Investigate incidents, maintain emergency planning, and conduct a compliance audit at least every 3 years.

2026 penalties for 29 CFR 1910.119

Maximums set by 29 CFR 1903.15(d). 2026 amounts unchanged from 2025 (no CPI adjustment; OMB M-26-11). Not an increase. The 2025 OSHA penalty levels remain in effect for 2026; OSHA made no inflation adjustment for 2026. 29 CFR 1903.15 identifies January 15, 2025 as the effective reference for these amounts, while OSHA's public penalties page currently references penalties assessed after Jan. 15, 2026.

Violation type	Minimum	Maximum	When it applies
Serious	$1,085	$16,550	Substantial probability of death or serious physical harm.
Other-Than-Serious	$0	$16,550	Relates to safety/health but unlikely to cause death or serious harm.
Willful	$11,823	$165,514	Intentional, knowing, or voluntary disregard of the requirement.
Repeated	$4,256	$165,514	A substantially similar violation cited within the last 5 years.
Failure to Abate	None	$16,550/day	up to $16,550 per day; total capped at 30x the daily amount (FOM Ch.6)

PSM inspections are complex and often follow a release; citations can span many of the 14 elements. Serious violations reach $16,550 and willful or repeat violations $165,514, and a covered process with systemic gaps can generate a very large grouped proposal.

Maximums and the willful minimum are set by 29 CFR 1903.15(d); the serious and repeated minimums are OSHA policy floors from its annual penalty adjustment memo. OSHA applies gravity-based and size, good-faith and history reductions (FOM CPL 02-00-164 Ch.6). Estimates only, not legal advice.

The business case for Process Safety Management (PSM) compliance

PSM exists because a single uncontrolled release of a highly hazardous chemical can kill workers and neighbors at once. The 14 elements form a management system so that no lone change, corroded pipe, or untrained operator can trigger a catastrophe on its own.

Free compliance tools for 29 CFR 1910.119

Job Hazard Analysis Builder Hot Work Permit Generator Chemical Inventory Template

Process Safety Management (PSM) penalties by state

Penalties and enforcement vary by state. State-Plan states may impose higher penalties and additional requirements beyond federal 29 CFR 1910.119.

Alabama Arkansas Colorado Connecticut Delaware District of Columbia

View all 50 states + DC →

Frequently asked questions about 29 CFR 1910.119

What is OSHA's Process Safety Management (PSM) standard?

1910.119 is OSHA's rule for preventing catastrophic releases of highly hazardous chemicals. It applies to processes that contain a listed chemical at or above its threshold quantity, or 10,000 pounds or more of a flammable liquid or gas, and requires a management system of 14 elements, including process safety information, a process hazard analysis, operating procedures, mechanical integrity, management of change, and compliance audits.

When does PSM apply to a facility?

When a process contains a highly hazardous chemical listed in Appendix A of 1910.119 at or above its specified threshold quantity, or 10,000 pounds or more of a flammable liquid or gas on site in one location. Certain operations are excepted, such as atmospheric-pressure hydrocarbon fuel tanks and retail facilities. If no process meets a threshold, the 14-element PSM program is not required, though other OSHA standards still apply.

How often must a process hazard analysis be revalidated?

At least every five years. Under 1910.119(e)(6), the process hazard analysis must be updated and revalidated by a team meeting the standard's requirements at least every five years after the initial PHA is completed, to keep it consistent with the current process. Separately, a compliance audit of the whole PSM program is required at least every three years under 1910.119(o).

What are the 14 elements of PSM?

They are: employee participation; process safety information; process hazard analysis; operating procedures; training; contractors; pre-startup safety review; mechanical integrity; hot work permit; management of change; incident investigation; emergency planning and response; compliance audits; and trade secrets. Each is a required part of the covered process's safety management system under 1910.119.

How is PSM different from the EPA Risk Management Program?

OSHA's PSM (1910.119) protects workers inside the facility from a catastrophic chemical release, while EPA's Risk Management Program (40 CFR Part 68) addresses the offsite consequences of a release to the surrounding community. They use similar threshold-quantity logic and overlapping chemical lists, so many facilities are covered by both and coordinate their process hazard analyses and prevention programs to satisfy each agency.

Regulatory history of 29 CFR 1910.119

OSHA promulgated the PSM standard in 1992 (57 FR 6356), mandated by the Clean Air Act Amendments of 1990 after catastrophic chemical releases such as Bhopal (1984) and Phillips 66 (1989). It shares its threshold approach with EPA's Risk Management Program rule (1996). Following the 2013 West, Texas ammonium nitrate disaster, an Executive Order prompted OSHA to review potential PSM expansions, though the core standard remains as issued.

Related glossary terms

Key terms that appear in 29 CFR 1910.119, each with a full plain-English explainer.

Process Safety Management (PSM)Permissible Exposure Limit (PEL)Safety Data Sheet (SDS)Flash Point Hierarchy of Controls Engineering Controls

Related guides & articles

OSHA Chemical Storage Requirements Complete Guide OSHA Top 10 Most-Cited Violations 2026

Related OSHA standards

29 CFR 1910.101

Compressed Gases

29 CFR 1910.106

Flammable Liquids

29 CFR 1910.107

Spray Finishing

29 CFR 1910.109

Explosives & Blasting

Primary sources

OSHA figures on this page are imported from HazComFast's verified regulatory module (verified 2026-10-05 against eCFR, OSHA.gov, and the Federal Register).

This page is an educational summary, not legal advice. OSHA standards and penalty amounts change; confirm requirements against the current regulation and your applicable State-Plan before acting.

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