Proposal for a decree by Robrecht Bothuyne, Andries Gryffroy, Kris Verduyckt, Mieke Claes, Sanne Van Looy, Hans Bonte and Stijn De Roo amending the Decree of 5 April 1995 containing general provisions on environmental policy and the Energy Decree of 8 May 2009, as regards the enforcement of safety regulations for natural gas distribution