A notice of completion was filed on a public works project in CA for which we are a subcontractor. 60 business days have passed; we were informed by the general contractor that retention was received and they asked for our "FINAL" Conditional release waivers and other final documents. We were notified today that because the general contractor had only received partial retention payment, they were withholding our retention payment until they received FULL payment. Is that legal? Can they withhold retention payment from subcontractors on the basis of only receiving partial payment?