EN 13611:2019, Clause 1 applies with the following modification and addition: Modification: The 1st paragraph of EN 13611:2019, Clause 1 is replaced by: This document specifies the safety, design, construction, and performance requirements and testing for manually operated taps and presetting taps for burners and appliances burning one or more gaseous fuels, hereafter referred to as "taps". This document is applicable to taps with declared maximum inlet pressures up to and including 50 kPa and of nominal connection sizes up to and including DN 50 for use with one or more fuel gases. Addition: This document is not applicable to: a) manual operated shut-off valves conforming to EN 331:2015; b) controls which use auxiliary energy (e.g. electrical energy supplied externally). The 4th paragraph of EN 13611:2019, Clause 1 is removed.