The UGI Shipwright Act of 2408 is the official document that is to be used by all shipwrights in the UGI.
Any ship produced without shielding is to have an extremely low crew requirement. Any vessel built without shield generators its crew cannot exceed 56 crewman to lower the loss of life. As any ship without shielding must have thick armor and heavy weapons to accomadate the vessel in protection. They may not have a hangar bay that requires a crew that will go over the most crewmen onboard. If it does have a hangar it will be required to have an extremely low crew count.