What it does
This instrument is a legislative instrument known as the Licence Area Plan - Karratha (Radio) - June 1996, as amended. It was originally registered on 10 July 1996 and commenced on 11 July 1996. The instrument defines a licence area plan for radio broadcasting services in and around Karratha, Western Australia, under the Broadcasting Services Act 1992. A licence area plan is a statutory planning tool that divides geographic territory into areas, each assigned specific frequency allotments and technical parameters for different categories of broadcasting services. The plan itself consists of schedules and attachments that specify the exact boundaries of licence areas, the frequencies available, the transmitter locations, power levels, and other technical constraints necessary for interference-free operation. The amendment history recorded in endnote 4 reveals that the instrument has undergone two major revisions: in 2003 (Variation to Licence Area Plan - Karratha Radio - May 2003) and in 2017 (Variation to Licence Area Plan - Karratha (Radio) - 2017 (No. 1)). A further consequential amendment was made in 2017 by the Broadcasting Services (Technical Planning) Guidelines (Consequential Amendments) Instrument 2017 (No. 1). The changes affected the title, the four clauses, both schedules, and numerous attachments. For example, clause (4) was added in 2017, and many attachments were repealed and substituted over time, indicating that the technical specifications for radio services in the area have been updated to reflect changed demand, spectrum reallocation, or new policy settings. The instrument is a legislative instrument registered on the Federal Register of Legislation, meaning it has binding legal effect. It operates as a condition on broadcasting licences: any licensee operating in the Karratha area must comply with the plan's technical and geographic provisions. Failure to do so could expose the licensee to enforcement action under the Broadcasting Services Act. The plan does not itself create rights to use spectrum; it identifies where and under what conditions a licence may be granted. The Australian Communications and Media Authority (ACMA) uses the plan when allocating new licences or varying existing ones. The instrument therefore functions as the spatial and technical rulebook for more than two decades of radio broadcasting in the Karratha region. Its repeated amendments show that the regulator considers it a living document, adjusted as spectrum use changes. From an economic perspective, the plan reduces transaction costs for broadcasters by providing certainty about available frequencies and avoids wasteful interference through centralised coordination. However, it also entrenches a command-and-control approach to spectrum allocation: incumbent licensees have a degree of protection from new entrants because the plan sets fixed assignments, limiting competitive entry. The 2017 amendments likely refreshed the plan, shifting spectrum allocations to accommodate new digital services or close out analogue transmissions, but the source text does not give those details.