This book on The Revised Implementing Rules and Regulations of the National Building Code, Annotated – a compendium of major laws, rules, and regulations on building and housing design standards – is therefore a most welcome endeavor to further educate and guide our engineers, architects, urban planners, developers, and, more importantly, the local government units, on existing construction parameters and standards which are complemented by the accompanying referral codes such as Batas Pambansa Blg. 220 and the Revised Rules and Standards for Economic & Socialized Housing Projects, and Presidential Decree No. 957 or the Subdivision and Condominium Buyer's Protective Decree and its Revised IRR both of which are under the regulatory jurisdiction of this Department.