Resolution authorizing the Office of Contract Administration to enter into a Third Amendment (Modification 3) to Contract 1000013880 between the City and County of San Francisco and Golden Gate Petroleum for the purchase of renewable diesel for all City departments, increasing the contract amount by $18,750,000 for a new total not to exceed amount of $86,750,000 and extending the duration by five months from May 31, 2024, for a total agreement term of June 1, 2019, through October 31, 2024; and to authorize the Office of Contract Administration to enter into amendments or modifications to the contract prior to its final execution by all parties that do not materially increase the obligations or liabilities to the City and are necessary to effectuate the purposes of the contract or this Resolution.