JMM developing TMA Operator Certification Program. Working for the American Traffic Safety Services Association (ATSSA), JMM is developing a certification program for the operators of truck-mounted attenuators (TMAs) is highway work zones. The course will discuss TMA practices, location of TMAs both during moving and stationary operations and other safety practices. The course is expected to be complete by the Fall of 2014. A pilot presentation was made in Canton, Ohio on September 11, 2014.