Section 61 [1] of the SRCA and Section 333 [2] of the MRCA requires the delegate to determine a claim for incapacity payments in writing. Any such determination must clearly indicate the start date and end date of a period of incapacity.
Links
[1] https://www.legislation.gov.au/Details/C2017C00237/Html/Text#_Toc488134719
[2] https://www.legislation.gov.au/Details/C2017C00214/Html/Text#_Toc487202721