Chapter 1 of Title 30 of the Code of Federal Regulations (30 CFR) is updated each July. All new rules that become effective between July 1 and the following June 30 are put in the next version of 30 CFR. New rules are often highlighted on the MSHA homepage where you can usually get a copy of the preamble and rule. You can also visit our Federal Register documents page to find a copy of the rule. If you still need help and/or would like a copy of the rule sent to you by e-mail or regular mail, feel free to contact MSHA's Office of Standards, Regulations, and Variances (OSRV).