Question: Who needs to get tested and when?

Answer passage (source: CDC):
page_title: Test for Current Infection
section_headers: How to get a viral test
section_content: COVID-19 testing differs by location. If you have symptoms of COVID-19 and
want to get tested, call your healthcare provider first. You can also visit
your
state
or local health
department’s website to look for the latest local information on testing.
Although supplies of tests are increasing, it may still be difficult to find
a place to get tested.
The U.S. Food and Drug Administration (FDA) has authorized two viral tests
that let you collect either a nasal swab or a saliva
sample at home. However, you will still need to send your sample to a
laboratory for analysis.

Reviewer feedback on this answer:
The answer does not specify what criteria need to be met for getting tested aside from having symptoms which does not help if one has been exposed to COVID-19 and wants to make sure that they are not an asymptomatic carrier. This answer is, however, the closest to the answer the questioner would want than the others.
This says how to get tested, but it doesn't say who needs or who doesn't need to be tested.

Reviewer ratings:
Acceptable
Bad

Answer passage (source: CDC):
page_title: Test for Current Infection
section_headers: How to decide if you should get a viral test
section_content: Not everyone needs to be tested for COVID-19. Here is some information that
might help you make decisions about getting a viral test.

Most people have mild illness and can recover at home without medical care. They may not need to be tested.
At this time, there is no treatment specifically approved for people who have COVID-19.

CDC has guidance for who
should be tested, but decisions about testing are made by state and local
health departments or healthcare providers.

Reviewer feedback on this answer:
The link provided in the answer might have more of a direct answer to the query but this is a decent starting point for an answer.
This states that not everyone needs to be tested.  It doesn't state who needs to be tested though.

Reviewer ratings:
Acceptable
Could be Improved

Answer passage (source: CDC):
page_title: Frequently Asked Questions
section_headers: Symptoms & Testing
Where can I get tested for COVID-19?
section_content: The process and locations for testing vary from place to place. Contact your
state, local, tribal, or territorial department for more information, or reach
out to a medical provider. State and local public health departments have
received tests from CDC while medical providers are getting tests developed by
commercial manufacturers. While supplies of these tests are increasing, it may
still be difficult to find someplace to get tested. See Testing for
COVID-19 for more information.

Reviewer feedback on this answer:
This answer talks about testing, but it doesn't give information on who needs to be tested.
This would be okay if the query had related to where they can go to get tested. The link provided might have the answer that they're looking for but it's impossible to know without clicking just what it is and could prove to be more information about the test itself and not what is being sought after.

Reviewer ratings:
Bad
Could be Improved