Yes, see 527.2 All Wiring Installations. (A) Other Articles. Except as specifically modified in this article, all other requirements of this Code for permanent wiring shall apply to temporary wiring installations.
Look for the rule in Article 406
Joe Tedesco, NEC Consultant
Re: In Use Covers#87612 03/25/0408:18 AM03/25/0408:18 AM
Hi, Thanks for the reply. I never have cared for the plastic see through covers. They may be more expensive than the Red Dot. I paid around $9 for a Horizontal GFCI Cover that was pot metal. I am like you though, the metal ones are more durableEspecially on a temp pole that is goingto be moved from time to time.