N.Y. Comp. Codes R. & Regs. tit. 10 § 58-1.9
All specimens accepted by a laboratory for specified tests shall be tested on its premises. However, specimens for infrequently performed tests or those not included within specialties or subspecialties stated on its permit or those requiring specialized equipment and skill may be forwarded to and accepted by another laboratory under permit issued by the commissioner or to a laboratory which is operated by a government agency or a non- profit research institution or to any other laboratory approved by the department. The reports of the results of such tests shall be sent by the testing laboratory to the forwarding laboratory, except that the forwarding laboratory may authorize the testing laboratory to send the report as provided in section 58-1.8 of this Part , in which event the testing laboratory shall send a duplicate of the said report to the forwarding laboratory. Where the results of a test have been reported to it by the testing laboratory, the forwarding laboratory shall send a transcript of such report as provided in section 58-1.8 of this Part and shall indicate thereon the name of the laboratory actually performing the test.
N.Y. Comp. Codes R. & Regs. Tit. 10 § 58-1.9