Many professional degrees span teaching at bachelor's and master's level, leading to a master's level award. This includes older degrees that retain the names of bachelor's degrees for historic reasons, e.g. the Bachelor of Medicine, Bachelor of Surgery (MBBS, MBChB, etc.), Bachelor of Dental Surgery (BDS) and Bachelor of Veterinary Science (BVS), and newer integrated master's degrees such as the Master of Engineering (MEng) or Master of Pharmacy (MPharm). In some subjects, qualification can be via separate bachelor's and master's degrees, e.g. a Bachelor of Engineering (BEng) followed by a Master of Science (MSc) in Engineering, or a Bachelor of Arts (BA) or Bachelor of Science (BSc) in Architecture followed by a year of professional experience, then a two-year Master of Architecture (MArch). In some subjects the normal professional degree is a bachelor's degree, e.g. the Bachelor of Laws (LLB) or BA in Law (for both solicitors and barristers) or a BSc in Surveying. Some professional bodies also offer different levels of professional recognition, e.g. a master's degree is needed for Chartered Engineers or Chartered Scientists but a bachelor's degree for Incorporated Engineers and a bachelor's or foundation degree for Registered Scientists.