Names placed on an eligibility list may be released to the public without further notice to the applicant. Written Signature Required. Date.EMPLOYER: (Please fill in the following information or submit a letter on company letterhead including the same information. Including date of employment). Applicant must be at least 18 years of age to apply for a PERC in an unarmed capacity. 3. The blue card is a permit for longterm residence for employment purposes in the Czech Republic under special circumstances. Next, make sure to include your prior work experience and references. Applications for special construction must include page 3SP. All applications must include pages 6-OA and 6-DP. Forms on this website are PDFs with fillable fields.