On the ACT front, the registration deadline for the February 9th exam is January 11th. Note that the ACT is not offered in New York State in February. The easiest way to register is online at the ACT website.
The January and February exams are a good choice for high school juniors. Students will get their scores back in plenty of time to see whether or not improvement is needed to be on target for their top choice colleges. If the scores aren't up to par, students can prepare over the summer and retake the exams in the fall.