Regarding whether Tangshan vehicles need to carry the Beijing Pass, according to the Notice on Further Strengthening the Environmental Protection Management of Motor Vehicles (Jinghuan Reform [2008] 17), the environmental protection traffic management measures for motor vehicles will be implemented in Beijing-Tianjin-Hebei region from July 1 2008. The circular requires that all vehicles from non-Beijing-Tianjin-Hebei region must carry the vehicle-mounted mobile pollution source inspection and registration certificate and Beijing entry permit (the number plate is not applicable) when driving in Beijing-Tianjin-Hebei region (including Beijing). Therefore, if your vehicle comes from Tangshan and enters Beijing, you need to carry a Beijing Pass. For the latest information, please consult relevant departments or official policies.