According to the state of Maryland a Pennsylvania permit to carry is not recognized by the state of Maryland.Do I have any alternative to transport my weapon through the state of Maryland.
18 USC § 926A - Interstate transportation of firearms
Notwithstanding any other provision of any law or any rule or regulation of a State or any political subdivision thereof, any person who is not otherwise prohibited by this chapter from transporting, shipping, or receiving a firearm shall be entitled to transport a firearm for any lawful purpose from any place where he may lawfully possess and carry such firearm to any other place where he may lawfully possess and carry such firearm if, during such transportation the firearm is unloaded, and neither the firearm nor any ammunition being transported is readily accessible or is directly accessible from the passenger compartment of such transporting vehicle: Provided, That in the case of a vehicle without a compartment separate from the driver’s compartment the firearm or ammunition shall be contained in a locked container other than the glove compartment or console.
One must be careful if they desire to separate the ammo from the gun (which is not required to comply with FOPA posted above). If you have the gun in the trunk and the ammo in the passenger compartment, you are no longer in compliance with FOPA and give up the protection from state laws that is available.
It's best just to comply with FOPA: lock the unloaded gun and the ammo in the trunk and refuse to open it without a search warrant in the officer's hand.
