New York Laws
Article 66 - Co-Operative Property/casualty Insurance Companies
6606 - Reinsurance.

(2) Unless otherwise permitted by the superintendent, an assessment
corporation may assume reinsurance only from other authorized assessment
corporations but may cede reinsurance to any other licensed insurer if
such insurer is authorized to reinsure such kind or kinds of insurance
in this state or to an accredited reinsurer, as defined in subsection
(a) of section one hundred seven of this chapter.
(3) Any co-operative property/casualty insurance company may assume
reinsurance on property located wholly or partially without the
territory in which it is licensed to do a direct writing business
provided, however, that an assessment corporation may only assume
reinsurance on property located in the state of New York with the
exception of the counties of New York, Kings, Queens, Bronx and
Richmond.
(b) Every assessment corporation doing business as a direct writer,
which assumes reinsurance, may, in levying assessments on its members,
assess ceding insurer members as a separate group on the basis of actual
or estimated experience in that classification.