# Puerto Rico — US boiler and pressure vessel inspection requirements by state For Puerto Rico, governing body is Commonwealth of Puerto Rico, Department of Labor and Human Resources, P.R. Occupational Safety and Health Administration (PR OSHA), Boiler and Elevator Division; statute citation is Regulation Number 17 of the Office of the Assistant Secretary for Occupational Safety & Health, Regulation of Boilers and Pressure Vessels; power boiler inspection interval is One annual internal; One annual external and operational; low-pressure boiler inspection interval is One annual internal; One annual external and operational; pressure vessel inspection interval is One annual internal; One annual external and operational, recorded from its source on 2026-08-05. - **State:** Puerto Rico - **Governing body:** Commonwealth of Puerto Rico, Department of Labor and Human Resources, P.R. Occupational Safety and Health Administration (PR OSHA), Boiler and Elevator Division - **Statute citation:** Regulation Number 17 of the Office of the Assistant Secretary for Occupational Safety & Health, Regulation of Boilers and Pressure Vessels - **Power boiler inspection interval:** One annual internal; One annual external and operational. _(verified: appears in the quote below)_ - **Low-pressure boiler inspection interval:** One annual internal; One annual external and operational. _(verified: appears in the quote below)_ - **Pressure vessel inspection interval:** One annual internal; One annual external and operational. _(verified: appears in the quote below)_ - **Accepted inspector types:** Inspections are made by private inspectors and inspectors employed by insurance companies authorized by the Secretary of Labor and Human Resources. (Department of Labor and Human Resources does not make inspections). - **Exemptions:** All boilers and pressure vessels, except definitions and exemptions as established by ASME Code. ## What the source says > Boilers and Pressure Vessels: One annual internal; One annual external and operational. ## Source - https://www.nationalboard.org/PrintAllSynopsis.aspx?Jurisdiction=Select Last verified: 2026-08-05. Review by: 2027-08-05. Part of [US boiler and pressure vessel inspection requirements by state](https://referencesource.org/boiler-inspection-requirements-by-state/).