How would one even check that? My ISP is a extremely tiny one based in my town of 500 people.
Then you should be fine. From what I can find, 5 ISPs are participating right now. Four of the five are AT&T, Verizon, Comcast, and Time Warner Cable. They have the option to terminate service to violators, but none of them plan to do that.
Verizon is the only ISP that will cap customers' data speeds. Before doing so, Verizon will issue a series of alerts and then force repeat-offender FiOS customers to watch instructional videos about copyright and legal methods of downloading content. If customers continue pirating content, their connection will be capped at near dial-up speeds for 2-3 days. Verizon customers will get two weeks' notice before any slowdown occurs, providing a window to appeal piracy accusations. Customers of any ISP can appeal a copyright alert for a $35 fee, which is waived if their appeal is granted or if they express financial difficulties.
Time Warner Cable will not throttle customers' data plans or terminate service. Time Warner Cable customers accused of piracy will receive a series of alerts which, if they are ignored, will lead to customers experiencing a browser lock until they call Time Warner Cable representatives for an instructional conversation about copyright and legal methods of downloading content.
Comcast won't cap Internet speeds, either. Instead, repeat offenders will be first made to confirm receipt of stern warning emails. If their unwanted behavior continues, they will encounter persistent in-browser alerts, deletion of which will require a call to Comcast Security Assurance. CSA will discuss copyright issues and legal downloading alternatives with Comcast customers before deactivating the alerts.
AT&T is also choosing not to throttle users' speeds. AT&T customers accused of piracy will receive a series of alerts. If an accused customer continues illegally downloading content after receiving four such alerts, AT&T will demand they "take an extra step to review materials on an online portal that will educate them on the distribution of copyrighted content online" before they can access other websites, according to a company statement. AT&T noted the program is focused on "customer education rather than punishment."
It also only applies to wired Internet, so services like AT&T Wireless and Verizon Wireless are not affected.