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ISBN: 979-8-89628-077-4
residential pool/spa contractor or swimming pool/spa servicing contractor shall not be required to obtain a local swimming pool/spa water treatment and cleaning contractor license
As of 4/1/2026 the 2008 edition will no longer be allowed)
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NICET Water-Based Systems Layout (WBSL) - Level 4 Book Options:New Book ISBN: 979-8-89628-077-4NICET Water Based Systems Layout (WBSL) Level 4 The Water Based Systems Layout certification program is for engineering technicians engaged in the layout and detailing of water based systems that must meet code and statutory requirements. The candidates for NICET certification at Level IV in Water Based Systems Layout should have the knowledge, experience, and skills needed to supervise other technicians. The Exam Pros Prep Package helps you to pass
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