In this final rule, RSPA is correcting editorial errors, making minor regulatory changes and, in response to requests for clarification, improving the clarity of certain provisions to the Hazardous Materials Regulations (HMR). In addition, RSPA is revising legal citations in the HMR based on the codification of the hazardous materials transportation laws. The intended effect of this rule is to enhance accuracy and reduce misunderstandings of the HMR. The amendments contained in this rule are minor editorial changes and do not impose new requirements.