✅ 防火閘(fire damper) 可以跟據《小型工程監管制度》及《註冊承建商作業備考》(PNRC 71) 由 小型工程承建商（RMWC)安裝、建立及改動。
PNRC 25 改動如下(BD 現只提供英文版本):
5. Where the building works involve the installation of fire dampers, the fire dampers may be installed by the registered general building contractor (RGBC) of the project and a registered specialist contractor in the ventilation works category (RSC(V)) appointed for such purpose. Furthermore, under the Minor Works Control System, erection or alteration of a fire damper in a ventilation system of an existing building is designated as minor works, which may be carried out under the simplified requirements as an alternative to obtaining approval and consent under the BO. Reference can be made to Schedule 1 of the Building (Minor Works) Regulation and Practice Note for RC 71 respectively.
6. For fire dampers installed by RGBC/registered minor works contractor (RMWC), a RSC(V) should be engaged to inspect and certify that the fire dampers are in safe and efficient working order pursuant to Clause E8.3 of the Code of Practice for Fire Safety in Buildings. For fire dampers installed by RSC(V), the same RSC(V) could inspect and certify the fire dampers. The AP/RMWC in submitting the certification on fire dampers should include an inspection certificate on fire dampers by RSC(V).