Some rules are part of the by-laws (e.g. types of pets allowed), some are determined by Body Corporate (e.g. pool, gym and sauna close at 10pm), some are determined by the Building Manager (e.g. please let front desk staff know if you are expecting delivery of a large item) and some rules are determined by the Council (e.g. no renting car park for non-residents).
whilst part of the by-laws, detail the terms and conditions required to be observed to keep a pet within the building.