The provisions of California Public Resources Code Section 20800, et seq., shall apply to development in the Chula Vista coastal zone and in any case where no appeal has been filed from the decision of the City on a development permit in the coastal zone (including decisions on nonappealable developments) or where an appeal has been filed, but the Commission has determined not to hear the appeal, and when litigation has subsequently been commenced against the City concerning its decision, the City and plaintiff or petitioner shall promptly forward a copy of the complaint or petition to the executive director of the California Coastal Commission. At the request of the local government, and with the concurrence of the California Coastal Commission, the executive director shall request the Attorney General to intervene in such litigation on behalf of the California Coastal Commission. Administrative remedies pertaining to coastal development permits are not deemed to have been exhausted unless all appeal procedures provided by the California Coastal Act (Public Resources Code Section 30000, et seq.) and these regulations have been exhausted. (Res. 11903, 1985).