Colorado air pollution control commission Moves closer to powerful tool for regulating sources of pollution. RMN O 29, 1971 p.9 Adopts permit system, tightens control of existing polluters, prevents new ones. RMN g 11, 1971 p.132 3 new members named. Post .1a 13, 1972 p.2 Implementation of federal Environmental Protection Agency plan questioned ;goals, problems. Post F 8, 1972 p.4 Its authority has yet to be tested. PHN N 27, 1970 p.12 0