GTA ads can remain on buses and trains in the Denver area.
As reported by the Rocky Mountain News, directors of the Regional Transportation District (RTD) rejected a campaign led by the Parents Television Council and the Campaign for a Commercial-Free Childhood to ban ads for games rated M and above.
Similar bans are already in place in Boston and Portland, Oregon. As in Boston, it was a series of ads for GTA: Vice City Stories which prompted the call for future restrictions. Currently the RTD only excludes advertising for tobacco products.