This is true, but also not the whole story, from my cursorary Googling. (I do not agree with their stance, but I can see why using such tests to "clear" people

This is true, but also not the whole story, from my cursorary Googling. (I do not agree with their stance, but I can see why using such tests to "clear" people as non-infectious would be a problem.) >The Royal College of Pathologists of Australasia on Wednesday warned the tests had a “fundamental limitation” because antibodies could take up to 12 days to develop, long after a person becomes infectious. >Now, two states have used emergency powers to prohibit anyone from using a point-of-care serological test as an acute illness diagnostic tool. > In WA, GPs who offer the tests can be fined up to $20,000, while companies face fines of up to $100,000 under the state’s Public Health Act. The WA Department of Health said they made the declaration because of concerns about the “serious limitations” of the tests, which offered an “unacceptable risk” of community transmission due to false negatives.