The binding legal principles established are: (1) Under section 7(1) of PAJA, the 180-day period for challenging administrative action runs from the date the applicant becomes aware of the administrative action and the reasons for it, not from when the applicant receives legal advice about the need to challenge it. A party cannot rely on ignorance of legal obligations to extend time limits. (2) Under section 9 of PAJA, when determining whether the interests of justice require an extension of time, the court must consider: (a) the merits of the legal challenge; (b) the extent and cause of delay; (c) the explanation for delay covering its entire duration; (d) the conduct of the applicant, including any unreasonable tactical decisions; and (e) whether there are obvious and egregious deviations from constitutional prescripts. (3) Courts must exercise judicial deference when reviewing environmental authorisation decisions that involve technical expertise and policy-laden discretion, and may only interfere where the decision was not reasonably supported on the facts, was unreasonable in light of the reasons given, or falls foul of specific PAJA grounds. The court is not entitled to substitute its own view simply because it disagrees with the decision. (4) Under NEMA regulations, a basic assessment report must include: (a) a comparative assessment of feasible and reasonable alternatives describing advantages and disadvantages on the environment and affected communities (regulation 22(2)(h)); (b) an environmental management plan addressing operational phase impacts (regulations 22(2)(l) and 33(b)(ii)); and (c) where specialist reports are amended or supplemented with new information, they must be subjected to the public participation process (regulation 54(6)). (5) A decision-maker may reasonably require practical empirical testing (such as noise measurements during simulated operations) rather than accepting purely theoretical assessments, particularly where long-term nuisance impacts on communities are at issue and a risk-averse approach is mandated by NEMA.