Currency (Perth Mint) Determination 2011 (No. 1)

The central concept is the power under section 13(2) of the Currency Act for the Minister (or delegate) to determine that the Act is to have effect as if the Schedule included specified standard compositions for coins of a particular denomination. This effectively creates a legal shortcut: without amending the Act itself, the executive can authorise new coin compositions. The sixteen permissible compositions for $1 coins listed in section 4 are broad: they cover silver alloys (including sterling silver 92.5% silver with 7.5% other metal), pure silver at 99.9% and 99.99% thresholds, pure gold at 99.9% and 99.99% thresholds, and multiple base metal combinations. Notably, the compositions using "at least" or "not less than" language set minimum fineness but do not cap upper purity, so a coin could be 99.999% silver and still comply with "at least 99.9% silver". Section 13A(1) empowers the specification of standard weight, allowable variation, dimensions, and design for particular coins. For the two coins here, the determination fixes very precise physical standards. The weight tolerances are ±0.500 grams for both coins, which is a generous margin for manufacturing error: the silver coin's standard weight of 31.635 grams is approximately 1.017 troy ounces (since 1 troy ounce is 31.1035 grams), so it exceeds a pure troy ounce. The dimensions are maximums, meaning coins may be slightly smaller but cannot exceed the stated diameter or thickness. The design is defined via symbols: S1 (circular shape), E1 (continuously milled edge), O1 (obverse with Queen Elizabeth II effigy, the initials IRB for Ian Rank-Broadley, "ELIZABETH II", "AUSTRALIA 2011", and "1 DOLLAR"), R1 (reverse with colour image of the couple over Westminster Abbey, text "ROYAL WEDDING", "29.04.2011", "H.R.H. PRINCE WILLIAM OF WALES & MISS CATHERINE MIDDLETON", "1oz 999 SILVER", initials "AH" and "P" for the Perth Mint), and R2 (the same reverse but without colour and without the "1oz 999 SILVER" text). These design specifications are prescriptive but leave some artistic discretion: the exact representation of the effigy or the scene is not defined in law, only described. The instrument also clarifies that it does not affect any other determination of standard composition, weight, variation, dimensions, or design made under the same sections, preserving any existing approvals for other coin types.

The determination directly affects the Perth Mint as the issuing authority under the Currency Act for precious metal and commemorative coins. The Perth Mint is the entity that will manufacture, market, and sell the two coin types. The instrument gives it the legal authority to strike coins with these specifications as Australian legal tender. Coin collectors and bullion investors are the most likely purchasers: the silver coin, being a 1 oz silver bullion piece at a $1 face value, is targeted at precious metal investors seeking sovereign-guaranteed weight and purity. The base metal commemorative coin is aimed at collectors of royal wedding memorabilia. The public at large could theoretically use these coins as legal tender for any amount because the Currency Act provides that $1 and $2 coins are legal tender for any amount, but in practice the silver coin's metal value far exceeds its face value, so it will not circulate in everyday transactions. Retailers and banks could be asked to accept them but are unlikely to encounter them. The Reserve Bank of Australia and the Treasury have an interest because the determination expands the range of circulating legal tender coins, though the impact on the monetary system is negligible given the small mintage typical of such products. The Royal Australian Mint, which produces Australia's general circulation coins, is not affected by this determination because it applies only to the Perth Mint. International buyers of the coins may be affected by foreign exchange and customs regulations, but the instrument does not address those. Investors should note that the face value is AUD $1, but the market value will be driven by silver spot prices and collector premiums. The determination also affects assayers and quality control personnel at the Perth Mint, who must ensure each coin's weight falls within the ±0.500 gram tolerance and composition meets the specified fineness. Counterfeiters are indirectly affected because making a coin that exactly matches these specifications but without authorisation could constitute counterfeiting under the Currency Act, though the determination itself does not create that offence.

The determination imposes duties on the Perth Mint regarding the physical characteristics of the two coin types. For each $1 coin minted under this instrument, the Mint must ensure: the standard composition conforms to one of the sixteen listed in section 4 (specifically "at least 99.9% silver" for item 1 and "aluminium and bronze" for item 2); the standard weight and allowable variation are met (31.635g ±0.500g for item 1; 14.300g ±0.500g for item 2); the maximum diameter and maximum thickness are not exceeded (40.60mm and 4.00mm for item 1; 30.60mm and 3.10mm for item 2); the shape must be circular (S1), the edge continuously milled (E1); the obverse design must match O1, which includes a specific effigy and required text in the specified arrangement; the reverse must match R1 for the silver coin (with colour and the text "1oz 999 SILVER") or R2 for the base metal coin (without colour and without that text). The Mint also has the right to produce these coins as legal tender without further ministerial approval. The public has the right to use these coins as legal tender for the payment of any debt, up to any amount, by virtue of the Currency Act section 16. However, no person has a duty to accept these coins in payment; the Currency Act provides that coins are legal tender but does not compel a creditor to accept them (it merely extinguishes the debt if offered). The holder of such a coin has the right to redeem it at face value at the Reserve Bank or a bank, though the practical market value is higher. The determination does not confer any private right of action if a coin fails to meet the specifications; enforcement is through the Currency Act's provisions regarding counterfeiting or through contractual claims if the Perth Mint sells a coin that does not match advertised specifications. The determination also does not restrict the Mint from minting additional coins beyond the two specified, as long as they comply with some other determination or the Currency Act. The Mint may also use any of the sixteen compositions for other $1 coins under the general authorisation of section 4, provided those other coins have their own weight, dimension, and design specifications under a separate determination or the Act.

The determination itself creates no new penalties or enforcement mechanisms. It is a purely enabling instrument that authorises the production of specific coin types. All penalties relevant to these coins arise from the broader Currency Act 1965 and the Criminal Code. Under section 15 of the Currency Act, a person who makes a coin of the same design as an Australian coin with intent to defraud is guilty of an offence, punishable by imprisonment for up to 10 years or a fine, or both. Section 15A prohibits importing or exporting counterfeit coins. Producing a coin that exactly matches the specifications of item 1 or item 2 but without the Perth Mint's authority would likely constitute counterfeiting. The Perth Mint itself could face administrative or contractual consequences if it mints coins that deviate from the prescribed specifications, but the determination does not specify any penalty. Enforcement is likely to be internal quality assurance: the Mint would risk reputational damage and loss of its authority to issue legal tender if it flouted the specifications. The Australian Securities and Investments Commission or the Australian Competition and Consumer Commission could potentially take action if the Mint made false representations about a coin's composition, weight, or purity, but that would be under the Australian Consumer Law, not the Currency Act. The determination does not require the Mint to submit samples to any government authority or to report mintage figures. The only enforcement mechanism specifically referenced is the note that the instrument is registered on the Federal Register of Legislative Instruments under the Legislative Instruments Act 2003 (now the Legislation Act 2003), which ensures it is publicly available and legally effective. If the Mint were to mint an item 1 coin that weighed only 31.000 grams (outside the allowable variation), that coin would not be a coin authorised by this determination; it would fall outside the legal tender framework and might be considered defective. However, the Mint could still sell it as a non-legal tender round, but not as an Australian coin under this determination. The practical enforcement fallback is the market: bullion dealers and grading services will verify weight and composition, and any variance could cause the coin to trade at a discount or be rejected.

The determination operates solely within the framework of the Currency Act 1965. It is explicitly authorised by subsections 13(2) and 13A(1) of that Act. The Currency Act is the primary legislation governing Australian coinage, including the status of coins as legal tender, the prohibition on counterfeiting, and the powers of the mints. This determination supplements the Schedule to the Currency Act without requiring a formal amendment to the Act itself. It does not override or modify any other provision of the Currency Act, such as section 16 on legal tender limits (which provides that $1 and $2 coins are legal tender for any amount) or section 14 on the denominations of coins. The determination also interacts with the Reserve Bank Act 1959, which governs the issue of Australian currency, but the Reserve Bank's role is primarily in banknotes; coinage is the domain of the mints under the Currency Act. The determination is a legislative instrument under the Legislative Instruments Act 2003 (now the Legislation Act 2003), meaning it must be registered, tabled in Parliament, and subject to disallowance by either House within 15 sitting days. It has not been disallowed, so it remains in force. For tax purposes, the silver coin is likely treated as investment gold or silver under the A New Tax System (Goods and Services Tax) Act 1999. Under that Act, supplies of gold or silver of certain fineness may be GST-free if they meet the investment precious metal criteria. The coin's fineness of at least 99.9% silver would likely qualify it as investment silver, meaning the supply by the Perth Mint may be GST-free. However, this determination does not address tax treatment; it is a matter of separate legislation. The determination also interacts with the Competition and Consumer Act 2010 and the Australian Consumer Law: the Perth Mint must not engage in misleading or deceptive conduct regarding the coins' composition, weight, or legal tender status. Finally, the determination does not affect any state or territory laws on coinage, as currency is a Commonwealth power under section 51(xii) of the Constitution. It also does not affect any other determination made under the Currency Act for the Royal Australian Mint or for any other mint.

The source document shows no amendment history. This instrument is titled "No. 1" for the year 2011, indicating it was the first such determination made in that calendar year. The register of legislative instruments may show that subsequent determinations have been made, but the text provided does not include any amending instruments. The determination commenced on the day after registration, which occurred on 31 March 2011. Since it is a standalone instrument with a one-off purpose (authorising two specific commemorative coins), it is unlikely to have been amended. However, section 4(2) and section 5(2) preserve any other determinations, so if another determination for $1 coins exists (such as for the Royal Australian Mint's circulating $1 coins), this one does not affect it. The instrument itself has not been repealed; it remains in force until impliedly repealed by a later determination that covers the same subject matter. The fact that it is "No. 1" suggests the possibility of later determinations for other Perth Mint coins, but those would be separate instruments, not amendments to this one. The design of the obverse includes "AUSTRALIA 2011", which dates the coin and implies the determination was intended for a single year's production. No subsequent amendment would be needed to update the year because the design itself includes the year; if the Perth Mint wanted to produce a similar coin in 2012 with the year 2012, it would require a new determination. The format of the determination is consistent with standard drafting practice for legislative instruments: it notes it is made under the Currency Act, names the determination, provides for commencement, defines terms, sets out the substantive provisions, and includes a schedule.

The source document does not reference any litigation, and no cases are mentioned in the text. Given the narrow scope of this determination, it is improbable that it has been the subject of judicial challenge. Litigation could theoretically arise if a coin were alleged not to comply with the specifications, but such a dispute would likely be contractual between the Perth Mint and a buyer, not a challenge to the validity of the determination itself. A buyer could bring an action for breach of contract or misleading conduct if, for example, a coin described as "99.9% silver" turned out to be 99.0% silver. However, that would turn on the terms of sale, not on the determination. The determination merely sets the legal parameters; it does not warrant that any particular coin conforms. There have been no recorded cases in Australia where a determination of this type was challenged as ultra vires the Currency Act. The power under sections 13(2) and 13A(1) is broad, and the determination was made by the Assistant Treasurer, a delegate of the Minister, which is likely within the scope of the Act. There is no suggestion of procedural impropriety. The note about registration under the Legislative Instruments Act indicates the instrument is publicly available and validly made.

Several practical issues arise from this determination that are not immediately obvious. First, the silver coin's standard weight of 31.635 grams is not exactly one troy ounce of silver. A troy ounce is 31.1035 grams, so the coin contains 31.635 grams total, but because it must contain at least 99.9% silver, the silver content is at least 31.603 grams, which is about 1.016 troy ounces. The coin is marketed as "1oz 999 SILVER", but technically the silver content is slightly more than one ounce if the coin exactly meets the weight and purity minima. This gives the Mint a small margin for manufacturing error without falling short of the advertised weight. Second, the allowable variation of ±0.500 grams is fairly generous. For a coin that claims to be "1oz", the tolerance of 0.500 g means the weight could be as low as 31.135 g, which is still above one troy ounce, but as high as 32.135 g. The fineness minimum of 99.9% means the silver content could range from 31.104 g to 32.103 g. The tolerances are not atypical for bullion coins, but collectors and investors should verify individual coins. Third, the base metal coin (item 2) is specified as "aluminium and bronze" without any ratio, so the Mint has wide discretion in the alloy proportions, as long as both aluminium and bronze are present. Fourth, the obverse design O1 includes "AUSTRALIA 2011" and "1 DOLLAR". This means the coin is dated 2011 and cannot be used after that date without the design being inaccurate. The determination therefore effectively authorises production only for the 2011 year, but it does not set an expiration date for minting. Fifth, the design includes the initials "AH" for the designer and "P" for the Perth Mint. These are not defined in the determination but are part of the required design. Sixth, the silver coin reverse (R1) includes the text "1oz 999 SILVER". The determination does not legally require the coin to actually contain exactly 1 oz of silver; it requires at least 99.9% silver and a weight between 31.135 and 32.135 g. The claim "1oz" could be misleading if the coin is at the lower end of the tolerance, though it still contains at least one troy ounce. Seventh, the determination does not restrict the mintage quantity; the Perth Mint could issue millions of these coins, flooding the collector market. Eighth, the notes at the end indicate registration on the Federal Register of Legislative Instruments, but this is a separate matter under the Legislative Instruments Act. Ninth, the instrument is a legislative instrument, meaning it can be disallowed by Parliament, but it has not been. Finally, these coins have a face value of $1, but their bullion value far exceeds that; any transaction using them as $1 would be highly disadvantageous to the spender.

Compliance with this determination primarily falls on the Perth Mint as the issuing authority. The Mint must ensure that every $1 coin produced under this instrument meets the specifications set out in Schedule 1. For the silver coin (item 1), compliance requires: the coin is made of at least 99.9% silver (the remainder can be any other metal); its actual weight must be between 31.135 g and 32.135 g (31.635 g ± 0.500 g); its diameter must not exceed 40.60 mm; its thickness must not exceed 4.00 mm; the shape must be circular; the edge must be continuously milled; the obverse must bear the effigy of Queen Elizabeth II, the initials IRB, the text "ELIZABETH II", "AUSTRALIA 2011", and "1 DOLLAR" in a design consistent with O1; the reverse must show a colour representation of Prince William and Catherine Middleton over Westminster Abbey, with the text "ROYAL WEDDING", "29.04.2011", "H.R.H. PRINCE WILLIAM OF WALES & MISS CATHERINE MIDDLETON", "1oz 999 SILVER", "AH", and "P", in a design consistent with R1. For the base metal coin (item 2), the composition must be aluminium and bronze (any proportions); weight between 13.800 g and 14.800 g; diameter maximum 30.60 mm; thickness maximum 3.10 mm; shape and edge same; obverse same; reverse same as R2 (monochrome, without "1oz 999 SILVER"). The Mint should implement quality control processes: spectrometric analysis or fire assay to verify silver fineness; precision weighing of each coin or statistical sampling; dimensional gauging; visual inspection of design elements; and colour fastness testing for the silver coin's reverse. The Mint should also keep records of minting runs, batch numbers, and assay certificates to demonstrate due diligence. The determination does not require external auditing, but the Mint would be prudent to have its compliance reviewed by an independent assayer. For the public or third parties, compliance is minimal: if a person receives such a coin, they are not required to do anything; the coin is legal tender for $1. A buyer who purchases the coin from the Mint as a collector should verify the coin matches the description. If a buyer believes a coin is non-compliant, they may have a claim in contract or consumer law, but not under this determination. The determination itself does not impose any ongoing reporting obligation on the Mint. It is a one-time authorisation; once the design specifications are set, the Mint must adhere to them for every coin minted.