Most of the chemicals being used for my project are not listed in the San Francisco Reduced-Risk Pesticide List. Does this mean that the credit cannot be achieved?

It's always good to look into non-chemical and least toxic options prior to applying conventional pesticides; however, many pesticides, including insecticides and herbicides, that are not classified as Tier 3 products on San Francisco's list can be used in and around a project building so long as you issue universal notification prior to applying the chemicals.