Process for RE sale agent to work w other broker?

[Julio Salado]

Good day, Back in November 2014 I was hired with a broker - I worked for them for 3 weeks. I received no stipend or commission. It was my first attempt in RE but the timing was bad. Now almost a year later, I just got hired with a new broker. Is there anything i need to do to make sure my license is affiliated with the new broker? I'm in Mass. Thank you. Julio