I have inherited a T&M contract with labor hour clins. In May there was 1.5 million obligated onto the labor hour clin. In June the CO issued a an RFQ for a FFP requirement. July 1st the CO issued a NTP for 1.05 Million for the FFP requirement. Due to circumstances only 350K was expended prior to a stop work being issued in Aug. No additional money was provide outside of the labor hour money already on the contract. No modification was completed to formalize the NTP. in November the contract CO was changed (yeah me) and it was determined that the contractor was holding the invoice from the NTP as well as the fact that there was no longer any money in the labor hour CLIN. The CO immediately issued a stop work and asked for additional funds, as well as working to formalize the NTP. Funding was provided but do I have a an ADA violation on the authorization to proceed or does the fact that their was money on the T&M clin cover the CO?