The EPA does not bring secondary containment requirements into context when addressing portable containers. Instead, they refer only to containment under 40 CFR part 264.175(b). It says that a containment system must be designed and operated as follows:
The renewal fee for a Physician's and Surgeon's license is $820.00, which includes $37.00 for the mandatory fees as described below. The renewed license is valid for two years.
A DOT medical card is valid for two years -- less if you have a medical condition such as high blood pressure, which needs to be monitored regularly. The medical card is issued by a licensed medical examiner. A physical is required to make sure the driver is qualified to operate a CMV.