International Building Code Section 903.3.1 is hereby amended to read as follows:

[F] 903.3.1 Standards. Sprinkler systems shall be designed and installed in accordance with Section 903.3.1.1, 903.3.1.2 or 903.3.1.3 and other chapters of this code, as applicable. In addition sprinkler systems shall be designed with a buffer to account for water system fluctuations to include a low reservoir condition. Such buffer shall be 5% for static pressures less than 50 psi and 10% for static pressures above 50 psi.

Exception: Buffers are not required for systems designed in accordance with Section 903.3.1.3 (NFPA 13 D).

Permit applicants shall independently verify site specific static pressure:

• Prior to initiating the sprinkler system.

• Prior to installing any sprinkler piping, including the underground supply.

• Prior to requesting any cover inspections.