I’m very confused at the coding of the variable OCC2010. The codes listed here seem to be codes from 2002, not 2010 (with some exceptions - e.g., 5165 is there). And, many of them are incorrect. For example, 0030 should be “Legislators”, but is listed as “Managers in Marketing, Advertising, and Public Relations”.
The OCC2010 variable is based on the CPS occupational coding scheme used from 2003-2010 (see list of codes here). The specific OCC2010 value that you mention (“0030: Managers in Marketing, Advertising, and Public Relations”) combines the OCC codes “0040: Advertising and promotions managers”, “0050: Marketing and sales managers”, and “0060: Public relations managers” into a single category.