External
The first date of incapacity for work, is in respect of the disease claimed (not an original injury), and can usually be established from evidence on file, e.g. s — ick leave records, a claim for compensation.
Note that 'incapacity for work' is defined in S4(9) as being:
a)an incapacity to engage in any work, or
b)an incapacity to engage in work at the same level at which he or she was engaged by the Commonwealth or a licensed corporation in that work or any other work immediately before the injury happened.