SAT Subject score selection?

How many times you can take subject test?If you do bad on test,do you have choice to not to send to college or college will know your score?
I know some college required to send all the SAT score you took,does it apply for SAT Subject test too?

As many times as you want. But IMO, if you don’t get your target score after 2 times with adequate prep, try a different subject.

It depends on the college. If they require all Subject Test scores, then they require all Subject Test scores.

See above. Usually if a school requires all SAT scores, they allow score choice for Subject Tests. But not always. Check with your target colleges.

Thanks skieurope.
My another question is if you register for 3 sat subject on same day and decided to take only two,how you can cancel the third one?

From the College Board:

https://collegereadiness.collegeboard.org/sat-subject-tests/taking-the-test/test-day#changing-tests

Thanks for reply!
If you decide not to take sat subject test at all on the register day,how I can cancel the registration ?
Do I need to inform them or just not to show up?

Can someone please suggest?
If I don’t show up on the exam, will it count as 0 or not attempted? Or how can I cancel this test?

@skieurope pls. suggest.
Thanks.

If you don’t take the test, it does not “count;” there is no attempt, so no score.

Alternatively, you can cancel beforehand, but you only get $10 back. Or you can reschedule to a different date, for an additional charge.
https://collegereadiness.collegeboard.org/sat/register/fees/refunds

You should still call and get a little money back or pay $30, I think, to move the test to the different date. I just did that for my D regarding this Saturday’s test. They offered $10 refund or pay $30 to move it to a different day.

Thanks @skieurope and @ananora .