It’s hard to keep track of which sectors are allowable under Marin’s shelter order, but a new state program rolled out last week has made it easier. Last Friday, Governor Gavin Newsom announced a new tiered rating system designed to pace counties through reopening, replacing the state’s watch list and providing new universal rules. “This blueprint is statewide, stringent and slow,” Gov. Newsom said in a statement. “We have made notable progress over recent weeks,…