OSHA PSM Compliance for Inspection Service Providers

NDT and inspection contractors performing maintenance or repair, turnaround, major renovation, or specialty work on or adjacent to a covered process. That includes essentially all refinery and chemical-plant inspection work. Personnel are qualified under employer-based certification, so a contracted Level III can sign the written practice and administer examinations for the firm.

The contractor is a regulated party in its own right under the standard's contractor paragraph, separately from the host employer's mechanical integrity duties. It does not reach contractors providing incidental services that do not influence process safety, such as janitorial, food, laundry or delivery services. PSM licenses nobody, but it is the reason most refinery and chemical inspection work exists and the reason your paperwork gets audited. The mechanical integrity element requires written procedures to maintain equipment integrity, training for maintenance personnel, inspections and tests performed on process equipment, inspection and testing procedures that follow recognized and generally accepted good engineering practices, frequencies consistent with manufacturers' recommendations and good engineering practices, and documentation of each inspection identifying the date, the name of the person who performed it, the equipment serial number or other identifier, a description of the test and the results. Every NDT report you issue into a PSM plant becomes the host employer's record under that documentation paragraph.

Source: 29 CFR 1910.119 as published in the eCFR, text current to 1 August 2026 — verified verbatim for (a)(1)(i) and (a)(1)(ii) including the Category 1 flammable gas / flammable liquid with a flashpoint below 100 °F (37.8 °C) at 10,000 pounds (4535.9 kg) or more threshold; (d)(3)(ii) documentation that equipment complies with recognized and generally accepted good engineering practices; (e)(6) five-year process hazard analysis update and revalidation; (h)(1) application and the incidental-services exclusion; (h)(2)(i) through (vi) host duties; (h)(3)(i) through (v) contract employer duties including the training record contents; (j)(1) the six equipment categories; (j)(2) written procedures; (j)(3) training for process maintenance activities; (j)(4)(i) through (iv) inspection and testing and the five documentation items; (j)(5) equipment deficiencies; (j)(6) quality assurance; (k) hot work permits; and (o)(1) through (o)(5) compliance audits at least every three years with the two most recent reports retained. OSHA Instruction CPL 03-00-021, PSM Covered Chemical Facilities National Emphasis Program, information date 17 January 2017 — verified for the inspection process (opening conference, document requests before and after unit selection, PSM overview, initial walkaround, unit selection, Dynamic List questions, inspection of both host and contract employers, citations), for the emphasis on implementation over documentation, and for the specific request of contract employer safety programmes and contract worker training documentation. OSHA penalties page, osha.gov, accessed 21 August 2026, for $16,550 and $165,514. Percentage breakdowns of PSM citations by paragraph circulating online trace to a 1995 article and are not reproduced here.

Who does OSHA PSM apply to?

NDT and inspection contractors performing maintenance or repair, turnaround, major renovation, or specialty work on or adjacent to a covered process. That includes essentially all refinery and chemical-plant inspection work. The contractor is a regulated party in its own right under the standard's contractor paragraph, separately from the host employer's mechanical integrity duties. It does not reach contractors providing incidental services that do not influence process safety, such as janitorial, food, laundry or delivery services.

Can an outsourced Level III sign for OSHA PSM compliance?

Yes. OSHA PSM accepts employer-based certification, which places the obligation on the employer and allows a contracted Level III to write and sign the written practice, approve procedures and administer examinations. The Level III must be qualified in each method they sign for, and the employer still owns the records.

What documents does a OSHA PSM audit ask for?

Contract employer's safety information and programs, requested from the host employer during a National Emphasis Program inspection, Contract employer's documentation that each contract employee has received and understood the required training, containing the employee's identity, the date of training and the means used to verify understanding — 1910.119(h)(3)(iii), Written procedures to maintain the on-going integrity of process equipment — 1910.119(j)(2), Documentation of each inspection and test identifying the date, the name of the person who performed it, the serial number or other identifier of the equipment, a description of the inspection or test, and the results — 1910.119(j)(4)(iv), The recognized and generally accepted good engineering practice basis for each inspection procedure and each inspection frequency — 1910.119(d)(3)(ii) and (j)(4)(ii) and (iii). Auditors open records before they open manuals, because a manual describes intent while records show practice. The most common failure is a documented system that does not match what the technicians actually do.

How often is OSHA PSM renewed?

No certificate, no expiry, nothing to renew. PSM obligations are continuous. The two recurring intervals that shape inspection demand are the process hazard analysis, which must be updated and revalidated at least every five years after completion of the initial analysis, and the compliance audit, where employers must certify at least every three years that they have evaluated compliance with the standard and must retain the two most recent compliance audit reports. Refresher training for employees operating a process is required at least every three years. Contract employer training records must be current for every person you put on site. Firms that diarise renewal from the certificate date rather than from the last audit avoid the lapse that forces a full reapplication.

What are the most common OSHA PSM findings?

Inspection report missing one of the five items the documentation paragraph requires — most often the name of the person who performed the test, or the equipment identifier, No documented recognized and generally accepted good engineering practice basis for the inspection frequency actually used, Contract employee training records showing attendance but not the means used to verify that the employee understood the training, Deficiencies identified in an NDT report with no evidence they were corrected before the equipment returned to service. These recur because they are records problems rather than capability problems — the work is being done correctly and the evidence is not being kept.

Which NDT methods does OSHA PSM cover?

UT, UT thickness, PAUT, TOFD, RT, MT, PT, VT. Each method in scope needs its own approved procedure and personnel qualified in that specific method; a Level III qualified in ultrasonics cannot sign for radiography.

Related: the OSHA PSM overview, outsourced ASNT Level III cover, written practice development, NDT procedure development, a programme gap assessment, interim Level III cover.