The Ministry of Transportation Republic of Indonesia adopted several co-benefits activities related to climate change mitigation action through 2010-2014. In order to claim these activities results as climate change mitigation action, Ministry of Environment and Forestry need to verify them. The verification covers data accuracy, consistency, transparency and completeness of data quality and information. The author also verify the other parameters such as the calculation method, managerial system, monitoring system and funding support. In this program, several mitigation actions were implemented such as Area Traffic Control System (ATCS), traffic impact control, parking management, Bus Rapid Transit (BRT) system, smart driving, non-motorized transport, shifting from private vehicles to rail transport, rejuvenating of navigation facilities, aircraft fleet rejuvenation, renewal of the operation and maintenance system of airplane and improvement of flight navigation system during take-off and landing. The absolute difference results between claim and verification for all climate change mitigation actions based on Government Regulation (PP) No. 61/2011 were 13.44% - 43.5%. While for mitigation action beyond PP 61/2011, the absolute difference were 0% - 67.31%. There are no mitigation action satisfying all verification criteria. Based on these verification activities, The Ministry of Transportation should refine the method of mitigation action.