According to information from DGEG and IPAC, from December 2, 2011, the conversion projects for natural gas in existing houses and buildings already have to include the floor plan with the layout of the respective pipe, indicating material, shut-off valves and burning appliances.
This will significantly change the procedure for the preparation of conversion projects, particularly in the preparation of floor plans, as in most existing buildings does not exist, thus increasing the cost of producing respective projects.