PMG Articles

The PMG Technical Resources Team (PMG Team) develops technical resources and documents to
assist in understanding the technical requirements of the PMG codes and related standards.

Following is a collection of informative articles on important PMG issues and topics published by the PMG Team.

Also, check out an informative podcast on Refrigerant Standards below.

International Plumbing Code®:

Providing Options for
Designers of Modern Public Restrooms

From its inception in 2000, the IPC has prioritized privacy for occupants of public restrooms. Updates and additions have been made to subsequent editions of the code to improve upon privacy concerns and to address concerns about maintaining appropriate behavior inside of public restrooms. This article highlights the changes that have been made to the various editions of the codes, up to and including the 2021 IPC and International Building Code (IBC®), which have come to offer a toolbox of practical and safe solutions for the design of the modern public restrom.

Private Sewage Disposal:

Flushing Out the Facts

Private sewage disposal systems are underground wastewater treatment structures, commonly used in rural areas without centralized sewer systems. They use a combination of nature and proven technologies to treat wastewater from household plumbing produced by bathrooms, kitchen drains and laundry. Like the heating, ventiliation, and air conditioning systems, and other equipment in your home, these systems must be properly used and maintained to prevent harm to your home, family and the environment. This article dives into the proper use and maintenance of  private sewage disposal systems.

Code Changes on A2L refrigerants

Based on changes approved
During the 2021 Group A code cycle

The U.S. EPA issued a rule in 2021 mandating the phasedown of HFC refrigerant production and use over the next 15 years. The EPA adopted a final rule accepting six refrigerant alternatives for use in residential and light commercial air conditioning equipment – all are classified as A2L refrigerants. This article provides a brief history of the transition to A2L refrigerants and provides an overview of the related code changes in the 2024 IMC, IBC, and IFC that will permit the use of A2L refrigerants for human comfort.

Rainwater harvesting systems:

Protecting our water resources
for the long run

Rainwater harvesting systems have been used throughout the world to provide precious water resources to areas where water is scarce. The CSA B805-18/ICC 805-2018 — Rainwater Harvesting Systems standard applies to the design, materials, installation and operation of rainwater harvesting systems for potable and non-potable applications. This article provides an overview of the standard and how it can be used as an alternative compliance path to Chapter 13 of the International Plumbing Code.


HPAC Engineering reached out to Jim Cika, director of PMG technical resources for the International Code Council (ICC) to talk about refrigerants. Major code changes on A2L refrigerants are fast-approaching. Will you be ready?