UPC section 315.1 is amended to read as follows:
315.1 Unions. Approved unions shall be permitted to be used in drainage piping where accessibly located in the trap seal or between a fixture and its trap in the vent system, except underground or in wet vents, at a point in the water supply system.
Minn. R. agency 222, ch. 4714, pt. 4714.0315