SPS 382.20(4)(d)1.1. When requesting approval of an experimental plumbing system, all of the following shall be submitted: SPS 382.20(4)(d)1.a.a. At least 2 sets of plans signed in accordance with par. (d) and detailing the system installation for each site. SPS 382.20(4)(d)1.b.b. A letter of consent from the site or system owner of the installation. The letter shall acknowledge that the owner has received and read a copy of the experimental plumbing system submittal and is in agreement with all requirements listed within this subdivision. SPS 382.20(4)(d)2.2. The registered architect, engineer, designer or master plumber responsible for the design of the experimental plumbing system shall, upon completion, certify in writing to the department that the installation is in compliance with the approved plans, specifications and data. SPS 382.20(4)(d)3.3. Onsite inspections shall be performed by the department at time intervals as specified by the department, but not less than once a year. Time intervals shall be included as conditions of approval. An inspection report shall be written. The department may assess a fee for each inspection. SPS 382.20 NoteNote: Refer to ch. SPS 302 for applicable fees. SPS 382.20(4)(d)4.4. No later than five years after the date of the completed installation the department may perform one of the following: SPS 382.20(4)(d)5.5. If an experimental plumbing system is subsequently codified in chs. SPS 382 and 384, or ch. 145, Stats., the requirements as specified in subds. 3. and 4. do not apply. SPS 382.20(5)(5) Plan review. Except as provided in sub. (12), and pursuant to s. SPS 302.07 (3), the department shall review and make a determination on an application for plan review within 15 business days. SPS 382.20(5)(a)(a) Conditional approval. If, upon review, the department determines that the plans substantially conform to the provisions of chs. SPS 382 to 384, a conditional approval, in writing, shall be granted. All noncode complying conditions stated in the conditional approval shall be corrected before or during installation. SPS 382.20(5)(b)(b) Denial of approval. If, upon review, the department determines that the plans do not substantially conform to the provisions of chs. SPS 382 to 384, the request of conditional approval shall be denied in writing. SPS 382.20(6)(6) Evidence of approval. The plumber responsible for the installation of the plumbing shall keep at the construction site at least one set of plans bearing the department’s or the agent municipality’s stamp of approval and at least one copy of specifications. The plans and specifications shall be open to inspection by an authorized representative of the department. SPS 382.20(8)(8) Revisions. All changes or modifications, which involve the provisions of chs. SPS 382 to 384, made to plumbing plans and specifications, which have been granted approval under sub. (1), shall be submitted to the department or agent municipality for examination. All changes and modifications shall be approved in writing by the department or agent municipality prior to installation of the plumbing. SPS 382.20(9)(9) Revocation of approval. The department may revoke any approval, issued under the provisions of this chapter, for any false statements or misrepresentation of facts on which the approval was based. SPS 382.20(10)(a)(a) A conditional approval of a plan by the department shall not be construed as an assumption by the department of any responsibility for the design; and the department does not hold itself liable for any defects in construction, nor for any damages that may result from the specific installation. SPS 382.20(10)(b)(b) Plan approval by the department or its authorized representative shall expire 2 years after the date indicated on the approval letter, if construction has not commenced within that 2 year period. SPS 382.20(11)(a)(a) Procedure. The department shall consider and may grant a variance to a provision of this chapter in accordance with ch. SPS 303. SPS 382.20 NoteNote: Chapter SPS 303 requires the submittal of a petition for variance form (SBD-9890) and a fee, and that an equivalency is established in the petition for variance that meets the intent of the rule being petitioned. Chapter SPS 303 also requires the department to process regular petitions within 30 business days and priority petitions within 10 business days. SPS 382.20 NoteNote: Form SBD-9890 is available from the Department’s Division of Industry Services at P.O. Box 7162, Madison, WI 53707-7162; or at telephone (608) 266-2112 or (877) 617-1565 or 711 (Telecommunications Relay); or at the Division’s Web site at http://dsps.wi.gov/programs/industry-services. SPS 382.20(11)(b)(b) Petition processing time. Except for priority petitions, the department shall review and make a determination on a petition for variance within 30 business days of receipt of all calculations, documents and fees required to complete the review. The department shall process priority petitions within 10 business days. SPS 382.20 NoteNote: Form SBD-9890 is available from the Department’s Division of Industry Services at P.O. Box 7162, Madison, WI 53707-7162; or at telephone (608) 266-2112 or (877) 617-1565 or 711 (Telecommunications Relay); or at the Division’s Web site at http://dsps.wi.gov/programs/industry-services.