Are you sure you're supposed to be doing work on CalCERTS?
If you're unclear about what CalCERTS is for and why certificates of compliance need to be submitted, check out this FAQ. Essentially some documents regarding details of your project must be created online so the building department can easily check their accuracy in order to give you a final inspection and permit of occupancy.
Homeowner accounts allow regular people without contracting licenses to behave within CalCERTS as if they were one. Homeowners in California are legally allowed to perform construction work on their own dwelling; this account type reflects that. Contractors generally need licenses to handle construction for other people.
Homeowners only need to be involved in CalCERTS if they installed the HVAC system. In the case of New Construction jobs, if you as the homeowner did the majority of the actual building of the home (framing walls, setting up ducts, etc), you would also have responsibility to sign certificates in CalCERTS.
If you are not involved with the labor, you do not need to be registered on CalCERTS or do any paperwork yourself. Your contractor needs to do the paperwork - whoever modified or added (or will modify or add) the HVAC system to your home (existing or not).
Who is supposed to do this paperwork and register documents on CalCERTS?
Good question! It all depends on who is involved and who's doing the work.
The "paperwork" on CalCERTS is comprised of three sets of documents: the CF-1R, the CF-2Rs, and the CF-3Rs. These forms cover the pre-permit design plan (1R), the actual installation/construction performed (2R), and HERS rater test results (3R).
Anyone can create the CF-1R, including the homeowner. This can be done professionally by an energy consultant. Other professions that tend to do this are: architects, designers, drafters, and engineers. If you know one of those titles are involved in your job, they may have already created the CF-
The previous section described the responsibilities of the homeowner as an installer/builder, so you would be involved with the CF-2R forms if appropriate (if you installed the HVAC system). Otherwise your contractor
What do I do once the project is all done? How do I get my permit of occupancy or final inspection?
The building department wants everything completed on your CalCERTS project before finalizing your job. This means all CF-2R forms, including non-HERS verified forms, must be completed. This also means supplemental CF-1R forms included on most New Constructions must be done - these are in regard to the solar-readiness of the building.
The building department can technically see your project online at any point, but hard copies may be requested still.