Which types of substance testing are recognized?

The correct answer is based on the various types of substance testing recognized within the context of sports, specifically related to the NFL. This includes several categories that cover different times and circumstances under which testing can occur.

Intervention testing refers to situations where there is a need for immediate testing, often due to specific behavioral concerns or previous infractions. Pre-Employment testing is standard practice to screen athletes before they officially enter the league, ensuring that they align with the league’s substance policies. Pre-Season testing is critical to ensure that players are compliant before the competitive season begins. Testing by Agreement can include additional testing measures that may be put in place through specific contractual or league agreements.

Each of these categories plays a significant role in maintaining the integrity of the sport, promoting fairness, and ensuring player safety. Collectively, they represent a comprehensive approach to substance testing that goes beyond just routine checks, highlighting the league's commitment to monitoring and managing substance use among players.