What is the threshold for alterations that does not require updated plans?

What is the threshold for alterations that does not require updated plans?

• A. Twenty sprinklers or less
• B. Ten sprinklers or less
• C. Thirty sprinklers or less
• D. Fifteen sprinklers or less

Answer: (A)

In fire protection plan practice, how a modification is treated depends on how many sprinklers are involved. Changes that affect a relatively small portion of the system are considered minor and don’t require rewriting the official drawings. The threshold here is twenty sprinklers or less, meaning alterations impacting twenty sprinklers or fewer can be completed without updating the plans. This approach keeps documentation aligned with the actual installation while avoiding unnecessary revisions for small edits. If the work would alter more than twenty sprinklers, the drawings, hydraulic calculations, and related diagrams should be revised and resubmitted for approval so that the record accurately reflects the system as-built and remains compliant.

In fire protection plan practice, how a modification is treated depends on how many sprinklers are involved. Changes that affect a relatively small portion of the system are considered minor and don’t require rewriting the official drawings. The threshold here is twenty sprinklers or less, meaning alterations impacting twenty sprinklers or fewer can be completed without updating the plans.

This approach keeps documentation aligned with the actual installation while avoiding unnecessary revisions for small edits. If the work would alter more than twenty sprinklers, the drawings, hydraulic calculations, and related diagrams should be revised and resubmitted for approval so that the record accurately reflects the system as-built and remains compliant.