View all text of Subjgrp 164 [§ 57.6400 - § 57.6407]
§ 57.6401 - Shunting.
Except during testing—
(a) Electric detonators shall be kept shunted until connected to the blasting line or wired into a blasting round;
(b) Wired rounds shall be kept shunted until connected to the blasting line; and
(c) Blasting lines shall be kept shunted until immediately before blasting.