This excerpt taken from the CHRS 10-Q filed Jun 6, 2008.
Eligibility. Each non-employee director of the Company may participate in the Plan, subject to the terms hereof. No person other than those specified in this Section 5 will be eligible to participate in the Plan. The Administrator will notify each person of his or her eligibility to participate in an elective feature of the Plan not later than 15 days prior to any deadline for filing an election form.
This excerpt taken from the CHRS DEF 14A filed Apr 2, 2008.
Employees of the Company or any subsidiary who are or may become executive officers of the Company may be selected by the Committee to participate in this Plan.