Which statement regarding DEA Form 222 is accurate?

The statement about DEA Form 222 being partially filled by the supplier is accurate because this form is primarily used for the purchase of Schedule I and II controlled substances. Suppliers may be allowed to fill part of an order if they cannot fulfill the entire quantity requested at once, but they must complete the transaction with the remaining quantity within the timeframe set by regulations. This provision ensures that orders can be met as efficiently as possible while adhering to the legal requirements surrounding the handling of controlled substances.

In the context of the other options, the form indeed cannot be partially filled by the ordering practitioner themselves, as they must provide a complete order for the controlled substances on the form. Moreover, a physician does not sign DEA Form 222 to order Schedule I drugs; the form is typically required from a registered entity, such as a pharmacy or healthcare facility, and not directly from individual physicians ordering them. Lastly, DEA Form 222 is specifically utilized for Schedule I and II substances, not Schedule IV drugs, which have different ordering requirements.