Subcontracting ground rules. Also included are what factors must be present to extend a contract. Indemnity and insurance provisions. Termination clauses and specifics on removal of unsatisfactory work. While this list is not complete, most standard forms for conditions contain all these elements.
Supplementary conditions modify or elaborate on the general conditions.
For example, supplemental conditions might address numbers of days the owner has to review and process payment after receiving requests for payment from the contractor, standard forms to be used for payment requests or requests for information, more specific schedule details, and other information. Several standard forms for general conditions of the contract are common in the construction industry. You get different perceptions about which standard form is best to use when entering into a contract depending on perspective. Architects and designers feel more comfortable with A201 General Conditions, the form created by their organization. Some contractors, however, feel that the AIA form protects the owner and the architect first, the subcontractors next, and the contractor last.