In 1992, Biohazard signed with Roadrunner Records and released Urban Discipline, which gave the band national and worldwide attention in both the heavy metal and hardcore communities.

In 2005, Urban Discipline was ranked number 277 in Rock Hard magazine's book of The 500 Greatest Rock & Metal Albums of All Time. The video for the song "Punishment" became the most played video in the history of MTV's Headbangers Ball, and the album sold over one million copies. The band also began opening for larger acts such as House of Pain, Sick Of It All, Fishbone, and Kyuss.

This 30th anniversary edition expands it to 2LPs; which includes bonus tracks making their debut on the format.