As development increases throughout Canada and the United States, the need to provide cost effective onsite wastewater treatment that protects the environment is an ongoing challenge. This has been the catalyst for the development and testing of a number of new system designs, applications and product innovations in the onsite septic industry. In Alberta, the Safety Codes Council and Alberta Municipal Affairs (AMA), in conjunction with the University of Alberta, have embarked on a research project to provide interim guidelines for the effective use of pressurized At-Grade effluent treatment and dispersal systems.