Important Building Code and Report Sections

2003 ICC Residential Code
Section R104.11 Alternative material, design and methods of construction
and equipment.

The provisions of this code (2003 ICC Residential Code) are not intended to prevent the installation of any material or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved.
An alternative material, design or method of construction shall be approved where the building official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose
intended, at least the equivalent of that prescribed in this code. Compliance with the specific performance-based provisions of the International Codes in lieu of specific requirements of this code shall also be permitted as an alternate.

ICC-NES Evaluation Report Number NER-643
Section 3.6 Regarding use of metals with ACQ treated wood.

Metals used in contact with ACQ Preserve and ACQ Preserve Plus pressure treated wood shall be hot dipped galvanized, stainless steel or triple coated zinc polymer materials. Carbon Steel, aluminum, red brass and bronze shall not be used in contact with ACQ Preserve and ACQ Preserve Plus treated wood products.