; (2) certify that those operations are to be conducted at a time when the personnel involved are not in Federal service; (3) certify that participation by National Guard personnel in those operations is service in addition to training required under section 502 of this title; (4) certify that any engineer-type activities (as defined by the Secretary of Defense) under the plan will be performed only by units and members of the National Guard; (5) include a certification by the Attorney General of the State (or, in the case of a State with no position of Attorney General, a civilian official of the State equivalent to a State attorney general) that the use of the National Guard of the State for the activities proposed under the plan is authorized by, and is consistent with, State law