We have a suite of multiple award IDIQ contracts that was awarded using FAR Subpart 13.5 and share a ceiling of $5M. When running reports to track how much we had remaining against that shared ceiling, it appears as if we need to do a J&A ASAP so that we do not exceed our shared ceiling. The question came up as to whether we could exceed the current threshold of $7M afforded under FAR Subpart 13.5 since we awarded the contracts using FAR Subpart 13.5. Is there a prohibition against using FAR Part 6 as our authority and moving out of FAR Part 13 during contract administration?