In the context of commercial construction projects in Australia, "construction" refers to the process of building, altering, repairing, maintaining, or demolishing any structure or infrastructure. This encompasses a wide range of activities including site preparation, excavation, erection of structures, installation of systems and services, and finishing works.

To ensure compliance with Australian standards and regulations, commercial construction projects must adhere to the following:

1. AS 2124 (General Conditions of Contract): This standard outlines the general conditions of contract for construction projects, including the roles and responsibilities of parties involved, contract administration, and dispute resolution processes.

2. AS 4000 (General Conditions of Contract): Similar to AS 2124, AS 4000 provides a framework for the contractual relationships in construction projects, focusing on risk allocation, project management, and performance standards.

3. AS/NZS 1170 (Structural Design Actions): This set of standards specifies the structural design actions for buildings and other structures, including loads due to wind, snow, earthquakes, and other environmental factors. It ensures that structures are designed to withstand various forces and conditions.

4. Building Code of Australia (BCA): The BCA is a comprehensive set of technical provisions for the design and construction of buildings and other structures. It covers aspects such as structural integrity, fire resistance, access and egress, services and equipment, and energy efficiency. The BCA is part of the National Construction Code (NCC) and is mandatory for all building work in Australia.