The SDA rests on several interlocking conceptual building blocks that must be mastered before advising clients.
Protected attributes and causation. Each attribute has its own operative provision. Direct discrimination on the ground of sex (s 5(1)) occurs where, by reason of the aggrieved person’s sex, a characteristic that generally appertains to persons of that sex, or a characteristic generally imputed to persons of that sex, the discriminator treats the aggrieved person less favourably than a person of a different sex in the same or not materially different circumstances. The “by reason of” test is satisfied if the protected attribute is one of two or more reasons (s 8). Indirect discrimination (s 5(2)) arises when a condition, requirement or practice is imposed that has, or is likely to have, the effect of disadvantaging persons of the same sex as the aggrieved person. The same structure is replicated for each additional attribute in ss 5A–7AA. Family responsibilities discrimination is narrower and applies only to employers (s 7A).
Reasonableness defence to indirect discrimination. A respondent escapes liability for indirect discrimination if the condition, requirement or practice is reasonable in all the circumstances (s 7B(1)). The statute lists three mandatory considerations: the nature and extent of the disadvantage, the feasibility of overcoming or mitigating it, and whether the disadvantage is proportionate to the result sought (s 7B(2)). The burden of proving reasonableness lies on the person who imposed the condition (s 7C).
Special measures. Section 7D authorises “special measures” intended to achieve substantive equality between men and women or between persons with different attributes listed in subsection (1). A measure is treated as a special measure if it is taken solely for that purpose or for that purpose among others, whether or not the equality purpose is dominant (s 7D(3)). Once substantive equality is achieved the measure ceases to be authorised (s 7D(4)). Taking a special measure does not constitute discrimination under the operative provisions.
Sexual harassment, sex-based harassment and hostile workplaces. The definitions are deliberately broad. “Conduct of a sexual nature” includes statements (s 28A(2)). “Unwelcome” is not defined but is assessed objectively having regard to all circumstances including the age, sex, sexual orientation, gender identity, intersex status, relationship status, religious belief, race, colour, national or ethnic origin, any disability, the relationship between the parties and any power imbalance (s 28A(1A) and s 28AA(2)). A hostile workplace environment (s 28M) does not require the conduct to be directed at a particular person; it is enough that the conduct occurs in a workplace where the complainant works and a reasonable person would anticipate the possibility that it would result in the environment being offensive, intimidating or humiliating to a person of the complainant’s sex. Section 8A makes clear that a workplace environment can be hostile for a combination of reasons that include sex.
Positive duty. The duty in s 47C is owed by every employer and every PCBU (a term borrowed from the Work Health and Safety Act 2011). It is not contingent on a complaint. The duty holder must eliminate, so far as possible, the listed forms of conduct both by its own employees, workers and agents and by third parties whose conduct affects its employees or workers. The statute supplies a non-exhaustive list of proportionality factors that mirror those used in WHS reasonable-practicability assessments. Compliance with the positive duty is separately enforceable by the AHRC President; it does not create a new private right of action.
Application and constitutional reach. Section 9 is a long, complex “application” clause that limits the direct operation of the Act to Commonwealth employees, Territory acts, acts done under Commonwealth laws, corporations, banking, insurance, interstate trade and commerce, and acts done using postal, telegraphic or like services. The SDA also operates to the extent necessary to give effect to the listed international instruments (s 9(10)). Sections 10 and 11 preserve the concurrent operation of State and Territory laws.
Exemptions. The exemptions are prescriptive. Genuine occupational qualifications (s 30) are narrowly drafted and include physical attributes, authenticity in dramatic performance, decency or privacy in fitting rooms or toilets, search powers, living on premises without separate facilities, and prescribed positions. Religious bodies enjoy a broad exemption for ordination, training, religious observance and any other act or practice that conforms to the religion’s doctrines or is necessary to avoid injury to the religious susceptibilities of adherents (s 37(1)(d)), but that carve-out does not apply to Commonwealth-funded aged care (s 37(2)). Religious educational institutions may discriminate in employment and education on the grounds of sex, sexual orientation, gender identity, marital or relationship status or pregnancy where the discrimination is in good faith to avoid injury to religious susceptibilities (s 38). Insurance and superannuation exemptions turn on actuarial data or prescribed circumstances (ss 41, 41A, 41B). Sport exemptions allow exclusion on the basis of sex, gender identity or intersex status where strength, stamina or physique is relevant, but not in coaching, umpiring or children’s sport under 12 (s 42).
Victimisation and offences. Victimisation is both civilly unlawful (s 47A) and a criminal offence punishable by 25 penalty units or three months’ imprisonment for a natural person (s 94). Other offences include publishing discriminatory advertisements (s 86), failing to supply actuarial data when required (s 87), and communicating complaint particulars before inquiry or termination (s 92). The Criminal Code applies to all offences (s 13A).
Remedies and enforcement. The SDA itself does not create a direct right to damages. Complaints are made under the AHRC Act, which provides for inquiry, conciliation and, if unsuccessful, termination. Proceedings may then be brought in the Federal Court or Federal Circuit and Family Court. The AHRC may also intervene with leave (s 48(1)(gb)–(gc)). The positive duty is enforced administratively by the President issuing compliance notices or accepting enforceable undertakings.