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The CRBA is a not-for-profit association formed under the Associations Incorporation Act 2015, providing declared pest control services for land managers throughout Shark Bay, Carnarvon, Exmouth, Murchison, and Upper Gascoyne Shires, along with those pastoral properties below the State Barrier Fence in the Shire of Northampton and City of Greater Geraldton.


The associations’ primary purpose is the control of declared pests utilising funding from the Declared Pest Rates paid by landholders on these pastoral stations. These Declared Pest Rates funds are matched dollar for dollar by the WA Government to reflect the public benefit of controlling declared pest animals and weeds.


The association is formally recognised by the Hon Minister for Agriculture and Food as a recognised biosecurity group (RBG).



The CRBA area of operation takes in the Shires of Carnarvon, Exmouth, Shark Bay, Murchison and Upper Gascoyne. Along with additional pastoral properties below the state barrier fence within the Shire of Northampton and City of Greater Geraldton (locality of Mullewa) that also form part of the CRBA area of operation.  There are over 90 pastoral leases covering some 14.5 million hectares, with around 20% small stock carrying properties; multiple Exclusive Native Title properties covering approximately 1 million hectares and approximately 3.5 million hectares of land under the control of the Department of Biodiversity, Conservation and Attractions (DBCA).


The population for the CRBA area is approximately 9,500, with this number and numbers across the CRBA region increasing exponentially during the tourism season.  Our largest town is Carnarvon, with a population of approximately 5,500 residents.  Carnarvon is the regional service centre for the whole Gascoyne-Murchison area.


The CRBA region includes the Shark Bay & Ningaloo World Heritage Areas; Cape Range National Park, Mount Augustus and Kennedy Ranges National Parks, multiple nature reserves and former pastoral leasehold properties.  The types of land tenures and access to them continues to change annually, with the CRBA working closely with the three DBCA regional offices that are responsible for the management of these and other such properties within our region to ensure, where possible access is granted and pest control activities are undertaken. 


The CRBA shares its northern boundary with the Pilbara Regional Biosecurity Group (PRBG), the eastern boundary with the Meekatharra Rangelands Biosecurity Association (MRBA) and the southern boundary Northern includes Kalbarri National Park and unallocated Crown Land (UCL).

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Justin Steadman - Chairperson

Tim Higham - Vice Chairperson

Ross (Jox) Collins - Treasurer/Secretary

Harry McKeough - Full Member

Cameron Tubby - Full Member

Roger Davies - Full Member

Alister Gordon - Full Member

Greydon Mead - Full Member

Andrew Whitmarsh - Full Member

Gavan Mullan, DBCA - Associate Member

Vacant Position

Krystie Bremer - Executive Officer


Full membership of the Association is open only to ratepayers within the area subject to rule 19(3) of the groups constitution, and full membership is automatically bestowed upon the individual or entity in whose name the relevant Declared Pest Rate assessment is issued, provided also that the relevant assessment is paid in full within 12 months of its issue date.

The association is managed by a committee of volunteers who spend a considerable amount of their time in managing the operations and compliance of the CRBA.


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