OSHA Subchapter S is mostly a simplified version of an early (1980's) edition of 70E and a similar early version of NEC. For example OSHA requires that you test the meter first and then measure for absence of voltage in LOTO procedures while 70E requires testing it before and after the actual measurement. If you need the regulation start with 70 and 70E first and then back into OSHA for utilization equipment.
Be aware also that OSHA 1926 for Construction also applies but it is trivial compared to the general (1910) section so if you comply with Subchapter S you will comply with 1926 with one exception: 1926 requires tags but not locks and 1910 requires locks but not tags for lockouts.
When it comes to generation, transmission, and distribution OSHA 1910.269 is so different from all of the previously mentioned sources (as well as IEEE C2/NESC) that it's best to follow OSHA 1910.269. Conveniently when mixing/matching regulations, they have all the differences mapped out for you...see Annex A and study those in particular if you are coming from either a 1910.269 or Subchapter S perspective.
sha.gov" as part of your search.
