A code of practice will be drafted to make it safer for consumers to use gas regulators. Rules are to be tightened for the six suppliers of liquefied petroleum gas. The Electrical and Mechanical Services Department's announcement followed a meeting with industry representatives yesterday after Shell Hong Kong recalled 15,000 faulty regulators last month. The code will cover technical specifications of sizes, materials, safety features and performance of the regulators. Procedures for replacing old or defective regulators will be specified, and overseas manufacturers are expected to provide for quality control in Hong Kong. A draft of the code will be ready by the end of this year, and will be finalised after consultation with the industry.