It looks like uniforms are back on Congress' budget-cutting radar - language in the National Defense Authorization Act for Fiscal 2015 looks to get rid of service-specific camo patterns, according to an article over at Military.com.
The language in the 2015 NDAA - which is similar to that from the 2014 NDAA - looks to field a common-pattern camouflage uniform for the Air Force, Army, Marine Corps and Navy by 2018. The Senate Armed Services Committee did allow for one small revision - each branch can still use branch-specific insignia or accessories.
Earlier this year the Army announced they were adopting a new camouflage pattern - OCP or Operational Camouflage Pattern - after a multi-year research effort. This new camo research was prompted by many complaints about the Army's UCP - Universal Camouflage Pattern, that was adopted in 2004 at a cost of about $5 billion.
The US Air Force uses the Airman Battle Uniform, or ABU, as its standard uniform. The ABU is similar to the Army Combat Uniform (ACU), but with a slightly different color palette.
The US Marine Corps has used their MARPAT pattern uniform since 2002. It is used almost exclusively by the Marine Corps.
The Navy uses an overall blue version of the MARPAT pattern, which is designed more to connect with the Navy's heritage and to hide stains (some inevitable on a ship) than for concealment in combat operations.