A proposed $8.8 million assessment to fund the town’s portion of the Ayer Shirley Regional School District for next fiscal year will be taken up again at Monday night’s Special Town Meeting. The warrant article had been withdrawn at the May 13 Town Meeting because it was incomplete. As part of the new proposal, another $195,396 would be raised through Proposition 2½ debt-exclusion tax increase to cover the town’s payment for the regional middle school. The second article on the warrant calls for a temporary moratorium on allowing a medical marijuana treatment center in town. Massachusetts voters legalized medical marijuana in a statewide referendum last fall that also set the stage for dispensaries to provide the drug, but local officials are seeking more time to draft zoning regulations that would control where a facility could set up shop. Special Town Meeting gets underway at 7 p.m. in the auditorium of the regional high school, off Washington Street. The warrant has been posted online at www.ayer.ma.us.