Puncture & section repair standards (USTMA procedures, TRMG RPs, BS AU 159 lineage)

• Source / publisher: U.S. Tire Manufacturers Association — "Puncture Repair Procedures for Passenger and Light Truck Tires" wall chart and handout (ustires.org); TRMG recommended practices for truck/OTR repair (TIA); legacy benchmark BS AU 159 (UK tyre-repair specification)
• Type: standard (industry repair procedures)
• Topics: repairable-zone limits (tread area only, ≤6 mm passenger), demount-and-inspect rule, combination plug+patch requirement, no-outside-in/no-on-wheel repairs, section-repair limits for TBR crown/ shoulder/sidewall, repair-unit selection, runflat restrictions
• Vehicle scope: car | LCV | truck (separate procedures per class)
• Region: global (US/UK conventions widely adopted; SANS-adjacent for SA)
• Language: en
• Link: USTMA procedures PDF: ustires.org ; resource page: ustires.org ; truck section-repair chart example (TECH/Goodyear): techtirerepairs.com
• License/access: public downloads; USTMA wall chart is a purchase item
• Notes: BS AU 159 was withdrawn and replaced by ECE-type-approval and industry RPs — teach the current procedure (remove, inspect, plug+patch from inside, tread-area limits) rather than the legacy standard number. TBR-specific limits live in the TECH/manufacturer section-repair charts — per-brand limits vary by manufacturer.