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OSHA term · Glossary

Compliance Officer (CSHO)

Verified vs OSHA sources · 2026-10-05

An OSHA Compliance Safety and Health Officer — the inspector who conducts workplace inspections. A CSHO presents credentials (a photo ID and a serial number), holds the opening conference, performs the walkaround, collects evidence, interviews employees, and recommends citations. CSHOs are either safety specialists or industrial hygienists.

29 CFR 1903.729 CFR 1903.7(a)

Also known as: CSHO, OSHA inspector

Compliance Officer (CSHO) at a glance

  • Must present credentials — a photo ID and a serial number — before inspecting.
  • Runs the opening conference, walkaround, and closing conference.
  • Collects evidence, takes measurements/samples, and interviews employees.
  • Recommends citations; the Area Director issues them.

In plain English

The OSHA inspector. When they show up, they must show credentials (photo + serial number), then walk your site, take notes and samples, talk to workers, and write up what they find. A safety CSHO handles hazards; an industrial-hygienist CSHO handles exposures.

What the rule says

“At the beginning of an inspection, Compliance Safety and Health Officers shall present their credentials to the owner, operator, or agent in charge at the establishment; explain the nature and purpose of the inspection; and indicate generally the scope of the inspection and the records specified in § 1903.3 which they wish to review.”
29 CFR 1903.7(a)

In context

An enforcement, recordkeeping, or general-duty concept under the Occupational Safety and Health Act and 29 CFR. These terms define how OSHA inspects, cites, and penalizes employers.

29 CFR Chapter XVII

Where this is written in OSHA's rules

Example

A CSHO arrives at a jobsite, shows a photo credential and serial number, opens with a conference explaining why the site was selected, walks the site taking photos and a silica air sample, interviews two workers, and closes by describing the apparent violations she'll recommend for citation.

Why it matters

The CSHO's observations and evidence become the basis for any citation, so how the inspection is handled matters. Employers have the right to verify credentials, have a representative accompany the walkaround, and take their own notes/photos — exercising those rights protects them without obstructing a lawful inspection.

Verifying credentials vs. refusing entry

You may — and should — ask a CSHO to show credentials (photo ID + serial number). That's not the same as refusing entry. An employer can require a warrant, but demanding one changes the dynamic; verifying identity is a routine, expected step that doesn't obstruct the inspection.

What a compliance officer (CSHO) does

StepAction
CredentialsPresents photo ID + serial number
Opening conferenceExplains selection, scope, and rights
WalkaroundObserves, photographs, samples, interviews
Closing conferenceAdvises of apparent violations; recommends citations

Compliance Officer (CSHO): frequently asked questions

Can I ask an OSHA compliance officer for identification?
Yes. A CSHO must present credentials — a photo ID and a serial number — at the start of the inspection, and you're entitled to verify them (you can call the OSHA Area Office to confirm).
What does an OSHA compliance officer do during an inspection?
Presents credentials, holds an opening conference, performs a walkaround (observing, photographing, sampling, and interviewing employees), and holds a closing conference — then recommends any citations.
Is a CSHO a safety inspector or an industrial hygienist?
Either. OSHA compliance officers are trained as safety specialists (safety hazards) or as industrial hygienists (health/exposure hazards); the type sent often reflects the reason for the inspection.

Related terms

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More OSHA terms

Abatement

The action an employer takes to fix a cited violation or eliminate a hazard OSHA identified during an inspection. The citation sets an abatement date, the deadline to correct the hazard, and within 10 calendar days after that date the employer must certify to OSHA that the violation was abated. Failure to abate accrues additional penalties of up to $16,550 per day.

Area Director

The senior OSHA official in charge of a specific OSHA Area Office — the local unit that runs inspections and enforcement in its geographic territory. The Area Director has the authority to issue citations, propose penalties, hold informal conferences with employers, and approve settlement agreements. When a Compliance Safety and Health Officer (CSHO) completes an inspection, it's the Area Director who ultimately issues the citation.

Bureau of Labor Statistics (BLS)

The federal statistical agency within the U.S. Department of Labor that collects, analyzes, and publishes data on workplace injuries, illnesses, and fatalities. BLS conducts the annual Survey of Occupational Injuries and Illnesses (SOII) — compiled from employer OSHA 300 logs — and the Census of Fatal Occupational Injuries (CFOI). SOII data drives OSHA's Site-Specific Targeting (SST) program: establishments whose DART rates significantly exceed their BLS industry average are placed on the SST inspection list.

Competent Person

Under OSHA's construction standards, a person who is capable of identifying existing and predictable hazards in the surroundings or working conditions, and who has the authorization to take prompt corrective measures to eliminate them. The role requires both knowledge and the authority to act, and is mandated by name in many specific standards — excavations, scaffolds, fall protection, asbestos, and more.

Citation

The formal written notice OSHA issues to an employer after an inspection, describing each alleged violation, the standard cited, the proposed penalty, and the date by which the hazard must be corrected (abated). OSHA must issue a citation with reasonable promptness and no later than six months after the violation occurred.

Closing Conference

The meeting at the end of an OSHA inspection where the compliance officer confers with the employer and informally advises them of any apparent violations found. Importantly, the closing conference discusses what was observed and the employer's rights — but it does NOT state final citations or penalties, which come later in the written Citation and Notification of Penalty.

Contest

An employer's formal challenge to an OSHA citation, penalty, or abatement date. To contest, the employer must file a written Notice of Contest with the OSHA Area Director within 15 working days of receiving the Citation and Notification of Penalty. Filing sends the case to the independent Occupational Safety and Health Review Commission (OSHRC); missing the deadline makes the citation a final, un-appealable order.

DART Rate

Days Away, Restricted, or Transferred rate — an injury-rate metric from OSHA 300-Log data: (number of DART cases × 200,000) ÷ total hours worked. DART cases are those with days away from work (Column H) plus those with job transfer or restriction (Column I). OSHA uses it to target inspections at higher-injury establishments.

Sources & verification

Reviewed by HazComFast against eCFR, OSHA.gov, NIOSH, and the Federal Register. Last reviewed 2026-10-05. This glossary is general information, not legal advice; OSHA State-Plan states (e.g. California, Michigan) may adopt stricter requirements.

Put Compliance Officer (CSHO) into practice

Don't just read the definition — apply it. Use the free HazCom Audit Checklist (2026) to put real numbers behind Compliance Officer (CSHO) for your jobsite.

Get the Binder in Order Before the Inspector Arrives. Are You Ready?

OSHA does not give advance notice of inspections (29 CFR 1903.6). Get the binder in order before the opening conference, not during it.

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