Which action allows deviation from standards?

• A. It can never deviate
• B. When it complies with a standard adopted by the political subdivision where the system is installed
• C. Whenever the installer decides
• D. Only during emergency repairs

Answer: (B)

Deviations from standards are allowed only when the local authority having jurisdiction has adopted a standard that permits the change and provides an approval path. In Texas, jurisdictions adopt NFPA-based sprinkler standards but may amend them through local codes. If the installation follows the standard that the political subdivision has adopted, a deviation from the base standard is permitted because it aligns with the locally approved requirements and has the AHJ’s backing. The other ideas—no deviation at all, installer discretion, or deviation only in emergencies—do not reflect how codes work in practice, since any deviation requires alignment with and approval by the local adopted standard.