Final answer:
The statement is false; potency length refers to the time a product remains effective, while the expiration date is when the manufacturer no longer guarantees its safety and potency.
Step-by-step explanation:
The statement 'The length of potency is the same as the expiration date' is false. The length of potency refers to the period during which a product, such as a medication, maintains its desired strength and efficacy. In contrast, the expiration date is the final date that the manufacturer guarantees the full potency and safety of a medication. After this date, the quality of the medication may diminish, and it is no longer considered safe or effective to use. The expiration date takes into account various factors, including the stability of the active ingredient and the conditions of storage.