[ABSTRAK
Pemerintah Negara Bagian Queensland mencanangkan regulasi penghematan air bersih, dimana bangunan ? bangunan baru diwajibkan untuk memenuhi level air bersih tertentu. Dalam hal ini, tanki air hujan digunakan untuk memenuhi target tersebut. Namun demikian, para stakeholder telah memperhitungkan bahwa regulasi ini ?memakan? biaya yang sangat banyak. Maka dari itu, dibuatlah analisis cost-benefit pada regulasi penghematan air yang komprehensif untuk menentukan apakah regulasi ini pantas untuk tetap dipertahankan.ABSTRACT The Queensland State Government proposed an existing Water Savings Regulations, in which new buildings in most areas have to achieve certain water savings level. In order to achieve these targets, Rainwater Tanks (RWTs) are used. However, stakeholders found that these existing regulations somehow are costly. Thus more comprehensive benefit-cost analysis of retaining the existing regulation is undertaken in order to know whether or not it is worth to reta, The Queensland State Government proposed an existing Water Savings Regulations, in which new buildings in most areas have to achieve certain water savings level. In order to achieve these targets, Rainwater Tanks (RWTs) are used. However, stakeholders found that these existing regulations somehow are costly. Thus more comprehensive benefit-cost analysis of retaining the existing regulation is undertaken in order to know whether or not it is worth to reta]