Indiana is one of 22 states with its own OSHA plan, and thus is subject to an annual audit from federal OSHA.
'Recovery Works' is a new program that is paying for convicted felons to attend drug and mental health treatment centers instead of being sent to jail or prison
IOSHA hadn't originally planned to investigate the collapse, but it changed course after learning state employees had been involved in the stage's construction.
Mid-America Sound Corporation has agreed to pay $50,000 in fines from the Indiana Occupational Health and Safety Administration.
The agreement requires companies to provide fall protection and hazard identification training for all members by March 2014.
A temporary stage collapsed on concert-goers August 13, 2011, killing seven.