Index — J
California Mechanical Code (Title 24, Part 4) · 2025 edition · updated 2026-10-23 · California
CBSC: official editions, supplements and errata
Italicized text is a California amendment to the model code, as printed in the official publication.
Cite as: 2025 California Mechanical Code (Title 24, Part 4) · Effective January 1, 2026 · Official source: Building Standards Commission
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JOINTS AND CONNECTIONS . . . . . . . . . . . . . . . . . 1109.2,
1109.8, 1211.0,
1308.4.8–1308.4.9.6
Brazed joint . . . . . . . . . . . . . . . . . . . . . . . 212.0, 1211.4 Copper or copper alloy pipe or tubing . . . . . . . 1109.2, 1211.4, 1211.16.1
CPVC piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1211.3
Embedded piping and joints . . . . . . . . . . . . . . . . 1221.2
Expansion joint. . . . . . . . . . . . . . . . . . . . . . . . . 1313.2.2
Flared. . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.0, 1211.4,
1308.4.7.4, 1308.4.7.5
Mechanical joint . . . . . . . . . . . . . . 212.0, 1109.7, 1211.6,
1211.7, 1211.9, 1211.10,
1211.13, 1211.14,
1308.4.8.3
PE pipe or tubing . . . . . . . . . . . . . . . . . . . . . . . . . 1211.9
PE-AL-PE pipe or tubing . . . . . . . . . . . . . . . . . . 1211.10
PE-RT piping or tubing. . . . . . . . . . . . . . . . . . . . 1211.11
PEX pipe or tubing. . . . . . . . . . . . . . . . . . . . . . . . 1211.6
PEX-AL-PEX pipe or tubing . . . . . . . . . . . . . . . . . 1211.7
Plastic piping, joints, and fittings . . . . . . . . . . . 1211.16.2
PP piping or tubing. . . . . . . . . . . . . . . . . . . . . . . 1211.12
Press-Connect, definition . . . . . . . . . . . . . . . . . . . 212.0
PVC piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1211.13 Soldered joint . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212.0
Solvent cement
plastic pipe . . . . . . . . . . . . . . . . . . . . . 1211.3, 1211.13
Steel pipe or tubing . . . . . . . . . . . . . . . . 1109.2, 1211.14
Threaded joint . . . . . . . . . . . . . . . . . . . . 1211.3, 1211.14
Various materials . . . . . . . . . . . . . . . . . . . . . . . . 1211.16
Welded joint. . . . . . . . . . . . . . . . . . . . . . . 212.0, 1211.14
JUMPER, BONDING
Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204.0
Fuel gas piping. . . . . . . . . . . . . . . . . . . . . . . . . . . 1311.2
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