Contracting officers must provide written notification to potential offerors of any waivers being applied to a specific acquisition, whether it is a class waiver or a contract specific waiver. This notification must be provided at the time a solicitation is issued. If the notification is provided after a solicitation is issued, the contracting officer must provide potential offerors a reasonable amount of additional time to respond to the solicitation.
If a contracting officer does not provide notice, and additional reasonable time for responses when required, then the waiver cannot be applied to the solicitation. This applies to both class waivers and individual waivers.