Millerton Point is poised for upgrades to comply with state and federal accessibility standards that will include a new restroom and new parking spaces, the state parks department announced. The state parks system was sued in 2000 by the Berkeley-based nonprofit Disability Rights Advocates for failing to adequately provide access and comply with the Americans with Disabilities Act. In 2005, after a settlement, the department initiated a multi-decade initiative to upgrade sites. At Millerton, which overlooks Tomales Bay just south of Marshall, the agency will add two handicap parking spaces, two accessible picnic areas and a new A.D.A.-compliant vault restroom, said Bill Lutton, the Marin sector superintendent. (The footprint for the parking lot will remain the same, he added.) Two boardwalks and a loop trail, a portion of which will be rerouted away from the shoreline, will also be widened for compliance. Mr. Lutton said the agency hopes to finish the project by 2018. But otherwise the timeline, including when public scoping will begin as part of the environmental review process, hasn’t been decided.