The U.S. Environmental Protection Agency (EPA) has finalized sweeping changes to how hazardous waste pharmaceuticals must be managed by healthcare facilities. As of early 2025, healthcare providers in many states will be required to comply with the EPA’s 40 CFR Part 266 Subpart P—regulations designed to protect the environment, reduce risk of exposure, and simplify compliance.

If your facility generates or handles hazardous waste pharmaceuticals, it’s critical to understand what the Subpart P rule means and how to stay compliant as state-level enforcement takes effect.

Understanding Subpart P

Subpart P was developed specifically for healthcare settings, offering tailored standards for the accumulation, storage, and disposal of hazardous waste pharmaceuticals. This rule also includes a nationwide ban on the sewering (flushing or pouring down the drain) of any hazardous waste pharmaceuticals.

While Subpart P was finalized in 2018, full implementation is now underway, and many states are adopting and enforcing the rule beginning in 2025.

Key Changes Healthcare Facilities Need to Know

Sewer Ban
The sewering of all hazardous waste pharmaceuticals is now prohibited. This applies to hospitals, pharmacies, dental offices, long-term care facilities, and other healthcare providers—regardless of their generator status.

Simplified Generator Requirements
Under Subpart P, healthcare facilities that would otherwise be considered Large Quantity Generators (LQGs) due to acute hazardous waste pharmaceuticals can avoid full LQG regulations by operating under the new rule.

Extended Accumulation Time
Facilities can accumulate non-creditable hazardous waste pharmaceuticals on site for up to 365 days without needing a RCRA permit, as long as they comply with storage, labeling, and documentation requirements.

Redefined Empty Container Standards
The rule provides more clarity around when a container that held hazardous pharmaceuticals is considered “RCRA empty.” Many delivery devices like syringes, IV bags, and inhalers may now be disposed of as non-hazardous waste, depending on use.

Applies to Most Healthcare Generators
Subpart P is designed for healthcare facilities that generate hazardous pharmaceutical waste above the Very Small Quantity Generator (VSQG) threshold, as well as any reverse distributors handling potentially creditable pharmaceuticals.

Compliance Considerations for 2025

As the compliance deadline approaches, facilities should be preparing by:

  • Classifying all pharmaceutical waste to distinguish between creditable and non-creditable hazardous waste
  • Updating labeling and storage protocols to meet Subpart P requirements
  • Removing or sealing off drains near waste accumulation areas to prevent accidental sewering
  • Tracking accumulation dates and ensuring proper disposal within the 365-day limit
  • Filing EPA or state-level notifications as required, depending on generator size and location

You can find full EPA guidance here.

How Waste Medic Helps You Stay Ahead of the Changes

Staying compliant with Subpart P doesn’t have to be a burden. Waste Medic partners with healthcare facilities to manage hazardous pharmaceutical waste safely, efficiently, and in full compliance with federal and state regulations. We provide:

  • Compliant pharmaceutical waste containers
  • Proper labeling and storage support
  • Reliable pickup schedules to avoid accumulation issues
  • Regulatory insight to guide your staff and reduce risk

If you’re unsure whether your current practices meet Subpart P requirements—or want help preparing before your state begins enforcement—our team is here to assist.