30 CFR 56.12013 - Splices and repairs of power cables.
Permanent splices and repairs made in power cables, including the ground conductor where provided, shall be:
(b) Insulated to a degree at least equal to that of the original, and sealed to exclude moisture; and
Title 30 published on 2014-07-01.
No entries appear in the Federal Register after this date, for 30 CFR Part 56.