The San Luis Obispo County Integrated Waste Management Authority (IWMA) includes San Luis Obispo County and the Cities of Arroyo Grande, Atascadero, Grover Beach, Morro Bay, Paso Robles, Pismo Beach, San Luis Obispo and the Community Service Districts.

These jurisdictions formed a new agency in 1994 to plan and implement regional solid waste and hazardous waste programs. These programs have helped its member jurisdictions in achieving the California goal of a 50% reduction in solid waste by the year 2000. Read the Joint Powers Agreement.

Read an independent study commissioned by the SLO County IWMA comparing the environmental impacts of recycling, land-filling (with gas collection), and waste-to-energy plants.