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Regulations and Initiatives
- Accessory Units and Junior Units
- Agricultural Uses
- Agricultural Zoning Ordinance
- Cannabis Program
- County Code for Permit Sonoma
- Housing Urgency Ordinances
- Renewable Energy
- Septic Regulations
- Universal Design
- Water Efficient Landscape Ordinance
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- Winery Events Calendar
- General Noise Standards
- Winery Use Permit Application Process
- Application Fees
- Required Site Specific Studies for Wineries
- Private Guest Accommodations
- Examples of Winery Project Descriptions and Conditions of Approval
- Areas of Local Concentration
- Draft Guidelines Dry Creek Valley
- Traffic Studies
- Use Permit Application Forms
- Document and Map Listings
- Z Accessory Dwelling Unit Exclusion Removal
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Sonoma County Officially Adopts New Onsite Wastewater Treatment System Manual
Published: August 13, 2019
The Director of Permit Sonoma hereby adopts the County of Sonoma’s Onsite Wastewater Treatment System (OWTS) Manual, version 7.0, dated August 15, 2019.