OSHA states the following about our non-entry rescue devices…
The mechanical device used for emergency rescue must be designed and rated for human use. The standard specifies in paragraph 1910.146(k)(3)(ii) that the retrieval equipment must be designed for personnel. The performance-oriented nature of the standard allows flexibility as to the design specifications of the retrieval equipment itself. OSHA accepts certification by manufacturers as well as listing (as being tested) by Nationally Recognized Testing Laboratory (NRTL). An employer may design, manufacture, test, and certify (for example by a registered professional engineer) mechanical devices used for retrieval of personnel from a vertical space.