How are review hours calculated?

Base hours divide the package count by the review rate. Required hours multiply that by one plus the findings allowance. At 25 packages and 2 per hour the base is 12.5 hours, and a 22% allowance takes the total to 15.25.

What does the findings allowance cover?

Issuing findings, waiting for corrections and re-reviewing the resubmitted package. Few packages pass first review clean, and the loop is where review desks lose their dates.

What is a realistic package review rate?

The default of two per hour suits straightforward packages, while thick multi-discipline dossiers with heavy traceability can run below one per hour. Measure the rate from recent review records rather than assuming.

What does the window row add?

The window is the review hours the schedule can spare before the deadline. Required hours above it mean the desk cannot clear the backlog in time at this rate and allowance, and the overrun is quantified.

Nuclear & Critical Infrastructure Manufacturing calculator

Regulatory Package Review Load Calculator

Size the review desk before a submittal date. Enter the package backlog, the review rate, the findings allowance and the hours the schedule can give, and the page shows what fits and what spills over.

What this calculator does

Review hours for a package backlog at a measured rate, with the findings allowance and the review window explicit.

Formula used

Base review hours = packages to review ÷ packages reviewed per hour
Required review hours = base review hours × (1 + findings allowance ÷ 100)
Findings resolution hours = base review hours × findings allowance ÷ 100
Hours over the window = required review hours − available review hours
Window use = required review hours ÷ available review hours × 100

Inputs explained

Regulatory Packages to Review: Packages queued for review, from the submittal log.
Packages Reviewed per Hour: Average review throughput for packages of typical complexity.
Findings Resolution and Re-Review Allowance: Uplift for issuing findings, waiting on corrections and re-review.
Available Review Hours: Review hours the schedule can spare before the deadline.

How to use the result

Best suited to staffing a review desk before a submittal date, forecasting paperwork lead time for a release milestone, testing whether template fixes cut re-review hours.
One major nonconformance can trigger several re-review loops that no average captures. Reviewer qualification and training time are not part of these hours.

Common questions

How are review hours calculated? Base hours divide the package count by the review rate. Required hours multiply that by one plus the findings allowance. At 25 packages and 2 per hour the base is 12.5 hours, and a 22% allowance takes the total to 15.25.
What does the findings allowance cover? Issuing findings, waiting for corrections and re-reviewing the resubmitted package. Few packages pass first review clean, and the loop is where review desks lose their dates.
What is a realistic package review rate? The default of two per hour suits straightforward packages, while thick multi-discipline dossiers with heavy traceability can run below one per hour. Measure the rate from recent review records rather than assuming.
What does the window row add? The window is the review hours the schedule can spare before the deadline. Required hours above it mean the desk cannot clear the backlog in time at this rate and allowance, and the overrun is quantified.

Last reviewed 2026-10-01.