25 Pa. Code § 91.25 - Experimental projects
If the suitability of a proposed device or method of treatment has not been demonstrated by actual field use in this Commonwealth or another state with similar climatic conditions, only conditional approval will be given to it until the effectiveness of the device or treatment has been demonstrated to the satisfaction of the Department by ample field experience.
Notes
The provisions of this § 91.25 amended under section 5 of The Clean Streams Law (35 P. S. § 691.5); and section 1920-A of The Administrative Code of 1929 (71 P. S. § 510-20).
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