Your company needs to be registered with the state, I know that there is some paperwork involved and then a fee of 100$ for the year I believe. The link below is a link for the apprenticeship for you to fill out to register with the state.
http://www.mass.gov/eopss/consumer-p...pprentice.html
This also has a link of approved schools that the state will accept hours from.
http://www.mass.gov/eopss/consumer-p...n-license.html
The link above tells you the hours and class hours you need to get your license. I know it is better to be able to get into an apprenticeship program but not sure if your employer would go through the process, it takes some work on there part. If i were you I would get into school and then in another year if you finish your required schooling hours have your employer sign off on your 6000 hrs and then sit for your license.