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Individuals and businesses requiring plans for an excavation site can access the BYDA referral service free of charge. Resources are available to help you lodge an enquiry  and register for plans.

Phone support is also available by calling 1100.

Once an enquiry has been lodged you will receive plans to the email you registered with. The plans you receive will come directly from members of BYDA who are affected by your works. You can expect responses typically within minutes, however sometimes plans may take 2 business working days. Be sure to check your junk inbox for referral responses.

Asset owner information can be found on the Enquiry Confirmation Sheet. If you are waiting on a response from an asset owner, reference these details. Should you require further support, contact BYDA.

BYDA is not an emergency service. In a life-threatening situation, please call 000. If there is no threat to life, you can report damage to the asset owner directly via the Emergency Contacts.

For non-support related enquiries our main switchboard is 03 8877 6600.

BYDA members are organisations that own underground infrastructure assets, as well as affiliated organisations that share the zero damage, zero harm vision.

BYDA is committed to promoting safety within the industry and to decision makers that can influence health and safety legislation.

BYDA offers two different sessions to suit you and your organisation’s needs. The free sessions are offered in two different formats – online and face-to-face:

Awareness Session: Understand the role of BYDA, safe excavation practices, complying with asset-owner instructions, and the consequences of damages. Learn how to mitigate and avoid potential damage and harm and ensure a safe work environment.

Plan Reading Session: Develop the skills to interpret asset owners’ plans, legends, and symbols effectively. Understand the complexities of plan interpretation to ensure smooth project execution.

Members and allies can demonstrate their commitment to safe excavation by using the BYDA trademark in their marketing and promotion. To use the BYDA logo, a trademark application must be submitted and approved before use.

We produce industry appropriate merchandise to enable our safety messages to be front of mind in a practical way. If you would like to promote the BYDA safety message within your organisation or community, our merchandise is available for request.

Please note that all requests will be reviewed and fulfilled based on suitability and availability.

For non-support related enquiries our main switchboard is 03 8877 6600

National Office / VIC

Level 19, 15 William Street
VIC 3000


38/8 Avenue of the Americas
NSW 2127


19/35 Paringa Road
Qld 4172


6A, 128 Fullarton Road
SA 5067


77 North Lake Road
WA 6154