these are all kinda similar...

https://ecfr.federalregister.gov/current/title-31/subtitle-A/part-29/subpart-A/section-29.102

• Part 581 of Title 5, Code of Federal Regulations

may not be worth it:

• Parts 835 and 845 and subparts M, N, and R of part 831 of title 5, Code of Federal Regulations

https://ecfr.federalregister.gov/current/title-33/chapter-I/subchapter-O/part-159/subpart-C/section-159.97

• subchapter F of Title 46, Code of Federal Regulations

https://ecfr.federalregister.gov/current/title-48/chapter-2/subchapter-H/part-252/subpart-252.2/section-252.204-7018

• subchapter M of chapter I of title 22, Code of Federal Regulations

https://ecfr.federalregister.gov/current/title-34/subtitle-B/chapter-III/part-303/subpart-B/subject-group-ECFRcd7caaaa2680a00/section-303.104

• Appendix A of subpart 101-19.6 of title 41, Code of Federal Regulations

https://ecfr.federalregister.gov/current/title-21/chapter-I/subchapter-D/part-314/subpart-A/section-314.1

• subchapter F of chapter I of title 21 of the Code of Federal Regulations.

https://ecfr.federalregister.gov/current/title-8/chapter-I/subchapter-B/part-100/section-100.5

• chapter I of title 8 of the Code of Federal Regulations