The Massachusetts Office of Campaign and Political Finance (OCPF) missed a self-imposed deadline this week to release updated regulations limiting political contributions from labor unions.

A spokesperson for the agency said it could take several more weeks to work out the details and release the new rules.

The push to update a labor union contribution loophole comes after a 2018 court ruling upholding the state’s ban on corporate contributions.

The ruling acknowledged the significant difference for labor unions.

The draft regulations released in March seek to reduce the amount of money a union can contribute to a candidate annually from $15,000 to $1,000.

With the Missouri Supreme Court denying an appeal of two lower court rulings, a constitutional amendment reinstating campaign contribution limits will appear on the November ballot. State contribution limits, originally approved by voters in 1994, were repealed by the General Assembly in 2008.

If passed, the 2016 ballot measure would ban direct corporate and labor union contributions and limit individual and committee contributions to statewide candidates to $2,600 per election. Contributions to political parties would be capped at $25,000 per election.