# UL 1647 — Which OSHA-recognized labs (NRTLs) can certify to a given test standard For UL 1647, standard title is Motor-Operated Massage and Exercise Machines; nrtl is CSA; laboratory is CSA Group Testing and Certification Inc; status is currently recognized, recorded from its source on 2026-08-10. - **Test standard:** UL 1647 _(verified: appears in the quote below)_ - **Standard title:** Motor-Operated Massage and Exercise Machines _(verified: appears in the quote below)_ - **NRTL:** CSA _(verified: appears in the quote below)_ - **Laboratory:** CSA Group Testing and Certification Inc. _(verified: appears in the quote below)_ - **Status:** currently recognized _(our reading, not quoted from the source)_ ## What the source says > UL 1647 | Motor-Operated Massage and Exercise Machines | ## Source - https://www.osha.gov/nationally-recognized-testing-laboratory-program/csa Last verified: 2026-08-10. Review by: 2026-11-08. Part of [Which OSHA-recognized labs (NRTLs) can certify to a given test standard](https://referencesource.org/nrtl-recognized-test-standards/).