a DC system that was placed in service prior to January 1, 2025, and that is marked Class 5 · acceptance and maintenance tolerances · 3.40. Electric Vehicle Fueling Systems

What is the acceptance tolerance (new or newly repaired device) for a DC system that was placed in service prior to January 1, 2025, and that is marked Class 5 · acceptance and maintenance tolerances · 3.40. Electric Vehicle Fueling Systems?

For a DC system that was placed in service prior to January 1, 2025, and that is marked Class 5, condition is acceptance and maintenance tolerances; handbook 44 section is 3.40. Electric Vehicle Fueling Systems; acceptance tolerance (new or newly repaired device) is 5.0 %; maintenance tolerance (device already in service) is 5.0 %; edition is 2026, verified against its source on 2026-08-20.

shall be as follows: (a) For a DC system that was placed in service prior to January 1, 2025, and that is marked Class 5, acceptance and maintenance tolerances are: 5.0 %. This paragraph T.2.2.(a) shall expire on January 1, 2034; after that date, all DC EVSEs shall be subject to the tolerances of paragraph T.2.2.(b).

— nist.gov, retrieved 2026-08-20