Their name refers to Green River Ordinances, laws which prohibit door-to-door sales unless the house's owner gives permission to do so.

[2] Early in their career (circa 2003), the band regularly did opening gigs with Flickerstick in Texas,[3] and by 2005 had toured with Collective Soul and played with Eisley and Mutemath, among others.

[10] In 2009 and 2010, GRO saw two Top 40 radio singles, songs on over 20 television shows ("So You Think You Can Dance", "The Hills", "The Young and the Restless"), two music videos on MTV and VH1, as well as tours with several nationally touring artists, such as Goo Goo Dolls, Collective Soul, Switchfoot, Train, Lifehouse, and American Idol winners David Cook & Kris Allen.

"[14] GRO's original song "Rise Up" was featured on the AT&T Team USA Soundtrack (2010) alongside Mariah Carey, 3 Doors Down, Train, and Rascal Flatts.

[15] Their Capitol/Virgin Records debut album Out of My Hands and various singles were featured on Zune, Walmart.com, AmazonMP3, iTunes, Rhapsody, and Napster as Staff Picks, Song of the Day, What’s Hot, Track of the Week, and other promotions.

[22] On October 8, 2010, International Justice Mission released the compilation album Freedom exclusively through Family Christian Stores as a joint effort to raise funds and awareness to end global slavery.

They are alongside the biggest names in contemporary Christian music and are one of the only secular artists on the compilation due to their zealous passion on the topic of slavery.