Section 663.150 - What core services must be provided to adults and dislocated workers?(a) At a minimum, all of the core services described in WIA section 134(d)(2) and 20 CFR 662.240 must be provided in each local area through the One-Stop delivery system.(b) Followup services must be made available, as appropriate, for a minimum of 12 months following the first day of employment, to registered participants who are placed in unsubsidized employment.