Duties of the Board are provided for under regulation 9 of the National Water Fund Regulations, Government Notice No. 981 of 2019. The duties include but not limited to:

 (a)  ensure full collection and transfer of funds from various sources to the Fund's account; \

(b)  ensure that monies deposited into the Fund are used to achieve the objectives of the Fund; 

(c)  disburse funds from the Fund to implementing agencies for implementation of approved water projects; 

(d)   ensure that the operations of the Fund are exercised in an economical and efficient manner; 

(e)  recommend to the relevant authority taking of appropriate measures against misuse of funds by implementing agencies; 

(f)    approve annual estimates of income and expenditure and adhere to any such estimates; 

(g)  execute annual performance agreement with implementing agencies receiving funds for execution of water projects; 

(h)  approve a list of all funded projects for each quarter and submit it to the Minister for information; 

(i)     advise the Minister on the use and management of the funds; and

(j)     advise the Minister on new sources of funds for the purpose of ensuring adequate and stable flow of funds for implementation of water projects.