For PDM TCTOs requiring less than 4 labor hours, issuance must occur within how many days?

• A. 15 days
• B. 30 days
• C. 60 days
• D. 45 days

Answer: (D)

TCTO issuance times are tied to the estimated effort required to implement the change. When a PDM TCTO is expected to take less than four labor hours, the process designates a 45-day window to issue the directive. This shorter timeframe gets simple, low-risk changes out to field units quickly while still allowing the necessary review, coordination, and publication steps. Larger, more complex updates require longer lead times, so they use extended windows. Therefore, 45 days is the appropriate issuance period.