NFPA 20 – Standard for the Installation of Stationary Pumps for Fire Protection Updates APPA > NFPA 20 – Standard for the Installation of Stationary Pumps for Fire Protection Updates 2022 Edition – Temporary Interim Amendments (TIA) December 8, 2021TIA 22-1, Reference Section 11.4.1.3.1TIA 22-2, Reference Section 11.4.1.3.1.1 2019 Edition – Temporary Interim Amendments (TIA) December 4, 2018TIA 1389 Reference: 10.10.3.5 TIA 1390 Reference: 12.4.1.4