Verification of Employment (800) 367-5690, Company Code: 10396 The Work Number If you cannot find the employee's information through the telephone number. To get proof of employment, you may need to request a verification of employment letter from your current or previous employer.Employment verification in California involves confirming an individual's work history. Letter must state your name, position, title, job duties, dates of employment, and full or part-time status - including the number of hours worked per year. This article explains everything about employment verification letter meaning, how to get it, tips, email template and more. Discover 7 different employment verification letter templates with different details for proof of employment or future job opportunities. Use Form I9 to verify the identity and employment authorization of individuals hired for employment in the United States. Download an employment verification letter from UCPath. From USICS: M274 Handbook for Employers at page 48 Q. As an employer, do I have to fill out all the Forms I9 myself? Fill out paperwork properly and send it in.