California Public Resources Code Section 21080.16

(a) This division does not apply to a seismic retrofit project on an existing local bridge, except as otherwise provided in Section 15300.2 of Title 14 of the California Code of Regulations, that is identified pursuant to Section 179.1 of the Streets and Highways Code. (b) For purposes of undertaking the seismic retrofit project, the lead agency shall do all of the following: (1) Conduct outreach efforts in the vicinity of the project to ensure public awareness of the proposed project prior to approval of the project. (2) To the extent feasible, comply with standard construction practices, including, but not limited to, any rules, guidelines, or regulations adopted by the applicable air district for construction equipment and for control of particulate matter emissions. (3) To the extent feasible, use equipment powered by emulsified diesel fuel, electricity, natural gas, or ultralow sulfur diesel as an alternative to conventional diesel-powered construction equipment. (c) For purposes of this section an existing local bridge means a bridge that is located on a local street or highway. (d) For purposes of this section a seismic retrofit project means a project urgently needed to bring a dangerous and unsafe bridge up to contemporary seismic standards and retaining the same purposes, capacity, and location as the existing bridge. (e) This section shall remain in effect only until January 1, 2011, and as of that date is repealed, unless a later enacted statute, this is enacted before January 1, 2011, deletes or extends that date.