198 Neb. Admin. Code, ch. 7, § 002
The construction plan is to include certification from a Nebraska registered engineer that the facility design complies with these regulations. This certification is not necessary for a secondary containment or loadout facility if, for pesticides, the facility was constructed prior to November 14, 1992 and if, for fertilizers, the facility was constructed on or before July 1, 1994, and all other requirements are met. This certification is also not necessary if the plans and specifications follow generic or standardized designs developed by the industry, university or other governmental personnel or professional engineers and approved by the Department after November 14, 1992. Any changes to the generic or standardized design are to be certified by a professional engineer.
198 Neb. Admin. Code, ch. 7, § 002