Chapter II — National Institute of Standards and Technology, Department of Commerce
- Subch. A Measurement Services §§200.100 to 200.115
- Subch. B Standard Reference Materials §§230.1 to 230.7
- Subch. C Chips Program §§231.101 to 231.403
- Subch. D Standards for Barrels §§240.1 to 241.7
- Subch. E Fellowships and Research Associates §§256.1 to 256.6
- Subch. F Regulations Governing Traffic and Conduct §§265.1 to 265.43
- Subch. G National Construction Safety Teams §§270.1 to 270.352
- Subch. H Marking of Toy, Look-Alike, and Imitation Firearms
- Subch. I Metric Conversion Policy for Federal Agencies §§273.1 to 273.7-273.199
- Subch. J Accreditation and Assessment Programs §§280.1 to 287.5
- Subch. K Nist Extramural Programs §§290.1 to 292.6