The political, economic and social subcommittees are collecting reform proposals for assessment.
In a FM92.5 interview, Phongthep insisted that Prime Minister Yingluck Shinawatra was sincere about reform.
The political reform committee, chaired by Banharn Silapa-archa, a former prime minister and chief adviser of the Chart Thai Pattana Party, will consider all suggestions to ensure a successful outcome, he said.