The Bad Religion EP has been reissued a number of times, mostly on vinyl. It was initially released on 7-inch vinyl, and soon afterward re-issued as a 12-inch vinyl. In West Germany, a 7" bootleg limited edition of the EP was released in 1989 was packaged with then-current album No Control. The EP was also pressed on compact cassettes, but they are rare. Although the Bad Religion EP has never been released on CD, all the songs appeared on the 1991 compilation album 80-85, and once again on the 2004 CD reissue of the group's 1982 debut studio album How Could Hell Be Any Worse?, which featured the same track listing as 80-85. The EP was reissued on April 18, 2009 in conjunction with Record Store Day. Copies were limited to 1,000. It is currently being sold at Epitaph Records' online store and comes pressed on grey vinyl.
At the time of the original release, the Bad Religion EP received positive reviews from various fanzines. Brenda Jamrus of the punk rock magazine Ripper called the EP "a real powerful six song EP from Bad Religion." She added that "when so many bands are moving away from political overtones, these four guys are keeping politics alive" and described the songs as "fast and solid".
Dave Stimson reviewed the EP for the 16th issue of Touch and Go. In it, he said, "Unlike many LA based bands where all it takes is one listen and you're already dripping slobber on the floor, Bad Religion takes some time before winning over their legion of fans, which must be many cuz [sic] this is a great record. When you first hear it, you say same old LA-styled punk, good, but nothing to get excited about. Now that's where you're wrong. This is perhaps the best debut record since Nervous Breakdown. I can't quite put my finger on it...something like Black Flag meets Neg Trend."