More information from O*NET OnLine:

Gambling Service Workers, All Other - 39-3019.00

Note: "All Other" titles represent occupations with a wide range of characteristics which do not fit into one of the detailed O*NET-SOC occupations. O*NET data is not available for this type of title.

O*NET-SOC Description

All gambling service workers not listed separately.

Sample of Reported Job Titles

No information available.

SOC Occupation Groups

39-0000	Personal Care and Service Occupations
39-3000	Entertainment Attendants and Related Workers
39-3010	Gambling Services Workers
39-3019.00	Gambling Service Workers, All Other