# RCW 43.21C.034: RCW 43.21C.034: Use of existing documents

> Washington · Statutes · In force

URL: https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S034

## Section

- **Citation:** RCW 43.21C.034
- **Heading:** RCW 43.21C.034: Use of existing documents
- **Jurisdiction:** Washington
- **Kind:** Statutes
- **Status:** In force
- **Text as of:** August 14, 2026
- **Source:** Compiled text
- **Location:** Washington Code / Title 43 / Chapter 21C / Section 034

## Text

Lead agencies are authorized to use in whole or in part existing environmental documents for new project or nonproject actions, if the documents adequately address environmental considerations set forth in RCW 43.21C.030 . The prior proposal or action and the new proposal or action need not be identical, but must have similar elements that provide a basis for comparing their environmental consequences such as timing, types of impacts, alternatives, or geography. The lead agency shall independently review the content of the existing documents and determine that the information and analysis to be used is relevant and adequate. If necessary, the lead agency may require additional documentation to ensure that all environmental impacts have been adequately addressed.

## Nearby sections

- [RCW 43.21C.010 RCW 43.21C.010: Purposes.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S010.md)
- [RCW 43.21C.020 RCW 43.21C.020: Legislative recognitions—Declaration—Responsibility.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S020.md)
- [RCW 43.21C.030 RCW 43.21C.030: Guidelines for state agencies, local governments—Statements—Reports—Advice—Information.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S030.md)
- [RCW 43.21C.031 RCW 43.21C.031: Significant impacts.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S031.md)
- [RCW 43.21C.033 RCW 43.21C.033: Threshold determination to be made within ninety days after application is complete.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S033.md)
- [RCW 43.21C.034 RCW 43.21C.034: Use of existing documents.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S034.md)
- [RCW 43.21C.035 RCW 43.21C.035: Certain irrigation projects decisions exempt from RCW 43.21C.030(2)(c).](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S035.md)
- [RCW 43.21C.036 RCW 43.21C.036: Hazardous substance remedial actions—Procedural requirements and documents to be integrated.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S036.md)
- [RCW 43.21C.037 RCW 43.21C.037: Application of RCW 43.21C.030(2)(c) to forest practices.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S037.md)
- [RCW 43.21C.038 RCW 43.21C.038: Application of RCW 43.21C.030(2)(c) to school closures.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S038.md)
- [RCW 43.21C.039 RCW 43.21C.039: Metals mining and milling operations—Environmental impact statements required.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S039.md)
- [RCW 43.21C.040 RCW 43.21C.040: Examination of laws, regulations, policies by state agencies and local authorities—Report of deficiencies and corrective measures.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S040.md)
- [RCW 43.21C.050 RCW 43.21C.050: Specific statutory obligations not affected.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S050.md)
- [RCW 43.21C.060 RCW 43.21C.060: Chapter supplementary—Conditioning or denial of governmental action.](https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S060.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/STATE_WA_T43_C21C_S034. Check the current official text before relying on it. Not legal advice.