What does the PCA cover?

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The PCA contains the technical provisions for the design, construction, installation, replacement, repair, alteration, and maintenance of:
• Water services
• Sanitary plumbing and drainage systems
• Stormwater drainage systems
• Heating, ventilation, and air conditioning systems; and
• On-site wastewater management systems

The PCA also contains materials and product certification procedures, such as the WaterMark Certification Scheme, for certification of plumbing and drainage materials and products so that they may be authorised for their intended use.