(a) Separate parts of a plan for members of a group that are provided through alternative contracts that are intended to be part of a coordinated package of benefits are considered one plan, and there is no COB among the separate parts of the plan.(b) If a plan coordinates benefits, its contract must state the types of coverage that will be considered in applying the COB provision of that contract. Whether the contract uses the term "plan" or some other term such as "program," the contractual definition may be no broader than the definition of "plan" in this subchapter. The model COB contract provisions provide an example of how to define "plan" in §3.3510(d) of this title (relating to Model COB Contract Provisions).(c) A contract may apply one COB provision to certain benefits, such as dental benefits, coordinating only with like benefits, and may apply other separate COB provisions to coordinate other benefits.