Sorry I don't know too much about this. I would imagine they would need to attend a truck-driving school and then take the exam to get their license. It would be a good idea to call any truck-driving schools you find in the area and ask if they accept Pell grants.
I agree with Chase. Most of the training programs like CDL are NOT eligible for Pell grants (they used to but because there were so many abuses in the past, the government is much stricter about it), so that means that most are either private pay or students can be eligible for Career loans which are not government subsidized loans and carry very high interest fees and pay back rules. Perhaps it would be a good idea for him to contact the EDD office in Long Beach and find out if he can get some training supported through them. you should be able to call the EDD office in Long Beach and find out if they have training through them. If you go to http://www.edd.ca.gov/Jobs_and_Training/Job_Seekers_Individuals.htm, you should be able to do a search on available training.