For AI agents: read the machine-readable documentation index at /llms.txt or the single-file full reference at /llms-full.txt.
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R-1.1.1

The Philadelphia Code (2026 Code: The Philadelphia Code and Home Rule Charter current through October 8, 2026) · Philadelphia Code § R-1.1.1

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§ R-1.1.1

The numbers of all local amendments shall be preceded with the prefix “R-”.