The permanent record
5 parts of the Code with an amendment history
A CFR part is amended, never replaced, so this view accumulates where the calendar decays. 5 parts are amended by at least 5 final rules in the record. 0 of them are always amended in the same rule as a sibling and are recorded on that sibling's page rather than on a second page repeating one list. Parts cited less often appear on their agency and sector views.
- 0114 CFR 71 - Designation of Class A, B, C, D, and E Airspace Areas; Air Traffic Service Routes; and Reporting Points47 rules
- 0214 CFR 39 - Airworthiness Directives30 rules
- 0349 CFR 192 - Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards13 rules
- 0440 CFR 52 - Approval and Promulgation of Implementation Plans10 rules
- 0549 CFR 195 - Transportation of Hazardous Liquids by Pipeline4 rules
Cite this view
A CFR part is amended, never replaced, so this view accumulates where the calendar decays. 5 parts are amended by at least 5 final rules in the record. 0 of them are always amended in the same rule as a sibling and are recorded on that sibling's page rather than on a second page repeating one list. Parts cited less often appear on their agency and sector views. Figures read 28 October 2026. Cite the read date with the figure: the window moves as rules are published and amended.
CFR parts amended by federal rule, 9-month record - Luminory. Luminory federal effective-date record, 104 records, read 28 October 2026. https://luminory.org/cfr/Luminory. (2026). CFR parts amended by federal rule, 9-month record - Luminory [Data set]. Derived from the U.S. Federal Register API. https://luminory.org/cfr/All citation formats · How this is derived · Raw data (CC BY 4.0)