MI HB5398

Amends Michigan's labor law to allow "all-union agreements" (union security arrangements requiring union membership or financial support) only if approved by majority of all eligible employees or 3/4 of those voting, whichever is greater, and filed with the state labor commission.

Establishes process for challenging all-union agreements through petition: employer or 20% of covered employees may petition for termination election, which must be held 120-105 days before collective bargaining agreement expiration and completed 60 days before expiration.

Limits termination elections to once per collective bargaining agreement for agreements of 3 years or less, or once every 3 years for longer agreements.

Requires commission to keep confidential the identities of employees who vote or sign petitions related to all-union agreements, exempt from public records disclosure.

Maintains existing prohibition on requiring union membership or financial support as condition of employment, except where permitted under all-union agreement provisions in this section; violations subject to civil fines up to $500 and private right of action for damages and attorney fees.