Building codes, standards, regulations and guidelines form the basic foundation for design, construction and for effective post-construction operations and maintenance. Without proper understanding and application of codes and standards, buildings would be inundated with unsystematic design, inefficient system and unsafe conditions with regards to comfort, health and IEQ. There is ample evidence that strong and well-enforced building codes can and do save lives, reduce property damage, and improve health and productivity of occupants. Which codes are applicable is a challenge owners, designers and constructors deliberate? There is still lack of commitment to include operations and commissioning staff in goal setting and be part of the project and commissioning teams so that buildings’ mechanical, electrical, lighting and plumbing systems are kept well-tuned. With complexity of high-performance buildings, application of progressive analytical, performance & prescriptive measures for life cycle tracking of high efficiency projects is critical. This process can help in making adaptive changes to buildings systems to suit changing uses, or other internal and external factors that directly or indirectly affect performance. The need is not just to conserve energy, but to improve comfort, indoor environmental quality while meeting functional needs and resilience over the life-cycle. Sustainability goals for buildings are highly acclaimed as public and private sector’s contributions to environmental responsibility, resource efficiency and occupant health and safety.