Showrunners for the popular Christian-based TV series "The Chosen" announced Sunday they'd gotten the green light to move forward with production ... including their main cast, several of whom are in the actors' union. It's the first show to catch this break.

The reason ... they received a waiver from the Screen Actors Guild, which essentially gives them an exemption to keep filming -- even though the rest of the major productions in town are shut down. Deadline was first to report the news.

The folks who run "The Chosen" Twitter account had actually been pleading with SAG to cut them some slack ... and luckily, it came in record time. They were worried they'd have to pause things in Utah -- where they're in the middle of shooting a new season -- unless they got the waiver ... and since they received it in just a few days, they're not totally off schedule.

Now, as for why they're getting the waiver while other productions have to wait in the wings ... it actually has nothing to do with what you may think -- namely, some kind of religious loophole. On the contrary, it has more to do with whether the show/movie is independent ... aka, not having major ties to a TV or movie studio as far as funding.

"The Chosen" certainly has a grassroots background -- it initially got off the ground via crowdfunding -- but has since kinda gone mainstream ... with licensing deals being struck among a number of major studios like Netflix, Amazon, CW, Peacock, and others.

Despite that, it'll be allowed to resume ... so, fans of the show gotta be stoked. Praise be!