Final answer:
When filling a prescription for a controlled substance, the technician should follow the law that has a more stringent regulation.
Step-by-step explanation:
When filling a prescription for a controlled substance, if a technician discovers that the state and federal laws conflict, they should follow the law that has a more stringent regulation. This means that if the state law is stricter than the federal law, the technician should follow the state law. On the other hand, if the federal law is stricter than the state law, the technician should follow the federal law.