King County's updated Critical Areas Ordinance ("CAO") went into effect on January 1, 2005.
The CAO has been incorporated into the King County Code. The King County Code versions are available at www.kingcounty.gov/council/legislation/kc_code.aspx. The CAO has been codified as follows:
How does the CAO affect me?
King County has developed informational materials at different levels of detail to assist property owners, builders, consultants, and the general public in understanding the provisions of the CAO:
- Fact Sheets briefly describe the different elements of the CAO and its provisions to different types of critical areas and in different situations.
- Answers to Frequently Asked Questions.
- A PowerPoint slide show presented at a DDES CAO Workshop provides a general overview of the entire CAO.
- The CAO User's Manual provides detailed information on the CAO in a more easily understandable format to assist property owners and permit applicants in understanding how the CAO will be applied.
- Best Available Science provides background information that was used by King County in developing the CAO.
For alternate formats of documents, call 206-296-6600.
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Fact Sheets
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Questions & Answers
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CAO Educational Presentations
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DDES has presented free workshops on the Critical Areas Ordinance. For those unable to attend, the workshop is available for viewing online, on KCTV, or by DVD. See DDES Workshops and Events for more information.
A PowerPoint presentation from the CAO workshop also is available:
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>>View CAO PowerPoint Slide Show
>>Open or download CAO PowerPoint file (4.6 MB .ppt)
>>View CAO PowerPoint presentation in PDF format (3.3 MB .pdf)
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CAO User's Manual
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· Introduction
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· Part One - Administration
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· Part Two - Critical Areas
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· Part Three - Surface Water
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· Part Four - Clearing and Grading
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CAO User's Manual as one document (entire file, 2.1MB .pdf)
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Best Available Science
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· Volume I: Review of Science Literature
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· Volume II: Assessment of Proposed Ordinances
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· Literature References
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