63.4.2.2 Nonstandard Containers

Containers, equipment, and devices that are not in compliance with recognized standards for design and construction shall be permitted if approved by the AHJ upon presentation of evidence that they are designed and constructed for safe operation. [55:8.2.2.1]

The following data shall be submitted to the AHJ with reference to the deviation from the standard with the application for approval:

1. Type and use of container, equipment, or device
2. Material to be stored, used, or transported
3. Description showing dimensions and materials used in construction
4. Design pressure, maximum operating pressure, and test pressure
5. Type, size, and setting of pressure relief devices [55:8.2.2.2]