(b) A city, county, or district, which has received or is receiving moneys under this division for the construction or improvement of small craft harbors that provides facilities for the operation of commercial fishing vessels registered pursuant to Article 4 (commencing with Section 7880) of Chapter 1 of Part 3 of Division 6 of the Fish and Game Code, shall not prohibit the commercial operation and use of those facilities by commercial passenger fishing vessels of the same or similar displacement, which are licensed pursuant to Section 7920 of the Fish and Game Code, or the use by private recreational vessels unless otherwise expressly provided by law, unless the city, county, or district provides, elsewhere in the same harbor, alternative, equivalent facilities available at comparable cost for the commercial operation and use of commercial passenger fishing vessels and private recreational vessels or unless the city, county, or district adopts written findings showing why the existing facility cannot accommodate the operation of commercial fishing vessels, including commercial passenger fishing vessels, or private recreational vessels and why the facility cannot be modified to do so or why alternative, equivalent facilities cannot be provided in the same harbor to accommodate those operations. This subdivision does not require a facility to accept an application for the operation of an additional commercial passenger fishing boat at that facility if the harbor provides alternative, equivalent, adequate, safe facilities at comparable cost for the operation and use of commercial passenger fishing boats or if accommodations for the operation of the additional commercial passenger fishing boat are not reasonably available at the facility under the contract or agreement. For the purposes of this subdivision, an alternative, equivalent facility in the same harbor shall provide, at comparable cost, adequate restroom and sanitary facilities, parking, refuse disposal, vessel pumpout facilities, walkways, oil recycling facilities, receptacles for the purpose of separating, reusing, or recycling all solid waste materials, power and water service, and other shoreside facilities and equivalent docks, water channels, navigation aids, and weather protection, including, but not limited to, breakwaters, which are equivalent to the facility funded pursuant to Section 70, 70.2, 70.8, 71.4, 72.5, or 76.3.