Website: -. Alnwick was besieged by William the Lion, King of Scotland in 1172 and 1774. On the second try, the castle was recaptures. In the fourteenth century, Alnwick was bought from the Bishop of Durham by Henry Percy who began a major renovation. Piercy rebuilt the shell keep by enlarging it with seven semicircular towers added in a form called cluster donjon.
Quick Answer. The Maryland Department of Transportation Motor Vehicle Administration requires state residents to get an emissions test performed on their vehicles every 2 years, as of 2014. The test is performed at a vehicle emissions inspection program, or VEIP, station. Continue Reading.
It's wise to have your vehicle tested several weeks prior to renewal to leave time for any necessary repairs. Emissions tests are valid for 12 months. Typically, your vehicle must be smog checked if it is: 1  A gasoline-powered vehicle with a 1991 model year and newer. 2  A light-duty truck at least 8,500 lbs. or heavier.