Effective  March 1, 2007 the Workers' Compensation Agency made changes to Administrative Rule 408.43.  The changes to the general rules provide clarification to the rules regarding employers seeking to self-administer claims, definition to group self-insurer investment amounts, defines unacceptable endorsements to excess policies, clarifies acceptable Michigan workers' compensation adjusting experience for service companies and self administered self-insurers, and when claims may be handled outside of Michigan .  Also, these changes allow for letters of credit to be accepted by the Agency without a confirmation letter under circumstances acceptable to the director.  To review the changes, please see WCA Administrative Rules, specifically Rule 408.43a, 408.43i, 408.43k, 408.43m and 408.43q.