Section 2152 - Optional provision for tractor trailer units(a) The owner of every pickup truck, truck or truck tractor which is used to pull a semitrailer may elect to have the total gross load weight of the pickup truck, truck or truck tractor and semitrailer assessed against the pickup truck, truck or truck tractor and to pay the fees set forth in subdivision (3) of § 2151 of this title by filing with the Department an election form as provided by the Secretary.(b) Upon election to have the total gross load weight assessed pursuant to subsection (a) of this section, an owner may have not more than 3 semitrailers, as designated by the owner, registered upon the payment of a $40 per year fee for each designated semitrailer. No other fee for registration of the semitrailer shall be required.(c) The Secretary shall promulgate such rules and regulations as may be necessary to effectuate this section.21 Del. C. 1953, § 2151A; 55 Del. Laws, c. 176; 57 Del. Laws, c. 670, § 8A; 60 Del. Laws, c. 192, § 1; 62 Del. Laws, c. 388, §1; 67 Del. Laws, c. 411, §10; 70 Del. Laws, c. 186, § 1; 76 Del. Laws, c. 76, § 11.;