From the FPMT site:
The Lotsawa Rinchen Zangpo Translator Programme is a 4-year Tibetan language training program aimed at providing native speaker interpreters in our FPMT centers worldwide.
The program consists of two years of classroom study in Dharamsala, India followed by two years of training at an FPMT center as an interpreter for a geshe.
There have been five LRZTP programs so far.
The next LRZTP (LRZTP 6) will start in September 2012
NB: LRZTP 6 will have a few places available for students wishing to follow only the 2-year classroom program without committing to becoming an FPMT interpreter.
More information will appear on the dedicated blog (http://lrztp.blogspot.com/)