BDC 169SF - Contractor's Application for Payment - Short Form. Step 1: License Qualifications.In order to become a registered General Contractor, you must: Be at least eighteen (18) years old. The contractor proposal form is ideal for contractors of all type. From landscapers and flooring companies to builders and any service professionals. Easy-Fill: Fill out the form online, then print and mail it to CSLB. PDF: Print a blank form, then fill it out and mail it to CSLB. How do I fill this out? To fill out this Contractor Proposal Form, you will need to gather the required information about the project and your company. Reasonableness of price must be established.