SECTION 6
CONTROL OF MATERIALS
33
quality and suitability of alternative articles or materials, and the Engineer's
decision shall be final.
Whenever the specifications permit the substitution of a similar or
equivalent material or article, no tests or action relating to the approval of the
substitute material will be made until the request for substitution is made in
writing by the Contractor accompanied by complete data as to the equality of
the material or article proposed. The request shall be made in ample time to
permit approval without delaying the work, but need not be made in less than
35 days after award of the contract.
6-1.06 PLANT INSPECTION
• The Engineer may inspect the production of material or the manufacture of
products at the source of supply.
• Plant inspection, however, will not be undertaken until the Engineer is assured
of the cooperation and assistance of both the Contractor and the material producer.
The Engineer or the Engineer's authorized representative shall have free entry at all
times to those parts of the plant as concerns the manufacture or production of the
materials. Adequate facilities shall be furnished free of charge to make the
necessary inspection. The State assumes no obligation to inspect materials at the
source of supply.
6-1.07 CERTIFICATES OF COMPLIANCE
• A Certificate of Compliance shall be furnished prior to the use of any materials
for which these specifications or the special provisions require that a certificate be
furnished. In addition, when so authorized in these specifications or in the special
provisions, the Engineer may permit the use of certain materials or assemblies prior
to sampling and testing if accompanied by a Certificate of Compliance. The
certificate shall be signed by the manufacturer of the material or the manufacturer
of assembled materials and shall state that the materials involved comply in all
respects with the requirements of the specifications. A Certificate of Compliance
shall be furnished with each lot of material delivered to the work and the lot so
certified shall be clearly identified in the certificate.
• Materials used on the basis of a Certificate of Compliance may be sampled and
tested at any time. The fact that material is used on the basis of a Certificate of
Compliance shall not relieve the Contractor of responsibility for incorporating
material in the work which conforms to the requirements of the plans and
specifications, and any material not conforming to the requirements will be subject
to rejection whether in place or not.
• The Department reserves the right to refuse to permit the use of material on the
basis of a Certificate of Compliance.
• The form of the Certificate of Compliance and its disposition shall be as
directed by the Engineer.
6-1.08 FOREIGN MATERIALS
• Materials which are manufactured, produced or fabricated outside of the
United States shall be delivered to a distribution point in California, unless
otherwise required in these specifications or the special provisions, where they shall
be retained for a sufficient period of time to permit inspection, sampling and
testing.
• Attention is directed to the provisions in Section 8-1.07, "Liquidated
Damages." The Contractor shall not be entitled to an extension of time for acts or



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