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| # | Letters of Interpretation |
|---|---|
| 1 | - 1910.119(j)(4)(iv) - Is reassembly of a cylinder valve a mechanical integrity activity? |
| 2 | - 1910.119(j) - "Applicability of the PSM standard's mechanical intergrity requirements to refinery structures." |
| 3 | - 1910.119(j)(1) - PSM coverage of utility systems; whether 1910.269 preempts the PSM standard for power generation facilities that serve covered processes. |
| 4 | - 1910.119(j)(6)(ii) - PSM compliance for ammonia refrigeration systems. |
| 5 | - 1910.119(j)(6)(i) - PSM compliance for ammonia refrigeration systems. |
| 6 | - 1910.119(j)(2) - Requirement for flame-resistant clothing in petrochemical plant covered by PSM. |
| 7 | - 1910.119(j) - Compliance with PSM and ANSI/ISA-S84.01 for safety instrumented systems |