Section 41(4) of the National Water Act must be interpreted contextually and in light of constitutional values, particularly sections 24 (environmental rights), 33 (administrative justice), and the principles of co-operative environmental governance in NEMA. The word 'may' in section 41(4) confers discretion on the responsible authority rather than creating a peremptory obligation. The purpose of specifying a date for objections under section 41(4)(a)(ii) is to enable meaningful participation in the decision-making process, not to exclude parties from appeal rights under section 148. However, section 148(1)(b) must be read in context: it refers to persons who have lodged objections pursuant to notices given under section 41(4)(a)(ii). While this does not necessarily mean only persons who lodged objections before the specified date have appeal rights, persons seeking to appeal after procedural non-compliance must apply for condonation and satisfy the court that their failures should be excused. In determining condonation applications, courts must consider: the degree of non-compliance, the explanation for delays, prospects of success, prejudice to other parties, the importance of the case, compliance with rules, and the constitutional importance of the rights at stake. Condonation will be refused where applicants have failed to prosecute appeals diligently, failed to comply with multiple procedural requirements without adequate explanation, and where prospects of success are not strong enough to outweigh the procedural failures.