The CFR are regulations based on Public Law and/or U.S. Codes and is an interpretation of those laws, used by the Veterans Administration in the determination of claims. The "Authorizations" on which the CFR is based is noted in the text, usually at the end.
The CFR is updated every July, so these may not include revisions or additions which have occurred since last July.
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If it still decides to be cantankerous, you will be transferred to another link and a menu on the WAIS site which will allow you to select the desired CFR38 Volume---Select Volume #1--- for the Parts and Sections listed below.
Disease subject to presumptive service connection.
CFR38 Part 3 Section 309 (text)----38CFR3.309
Most recent available citation: CFR Title 38,Part 3, Section 309 (text)
Claims based on exposure to ionizing radiation.
CFR38 Part 3 Section 311 (text)----38CFR3.311
Most recent available citation: CFR Title 38,Part 3, Section 311 (text)
This is the complete Subpart A which includes those listed above. Interspersed throughout are the regulations pertaining to Dependents Indemnity Compensation. - DIC regulations are not in a neat, concise Section:
Pension, Compensation, and Dependency and Indemnity Compensation
CFR38 Subpart A (text)----38CFR3
Most recent available citation: CFR Title 38,Part 3, Section A (text)