Just visit http://www.dir.ca.gov/DAS/appcertpw/AppCertSearch.asp and follow the easy directions to have a letter automatically composed on Division of Apprenticeship Standards letterhead.
The letter is ready for printing at your local printer. The letter will contain the name(s) of the apprentice(s), their occupation, the action taken (e.g. "Start" to represent the beginning of an active apprenticeship period), the effective date of the action, and a certification ID that will verify information you entered.
To search for an apprentice to be placed in the letter all you need are the first four letters of the last name, the first letter of the first name, and the last four numbers of the social security number (e.g. LLLLF9999).