5 C.F.R. § 890.1033

(a) Written notice. OPM shall send written notice of suspension according to the procedures and methods described in § 890.1006(c)-(f).

(b) Contents of notice. The suspension notice shall contain information indicating that:

(1) The provider has been suspended, effective on the date of the notice;

(2) The initial period of the suspension;

(3) The basis for the suspension;

(4) The provisions of law and regulation authorizing the suspension;

(5) The effect of the suspension; and

(6) The provider's rights to contest the suspension.