Professional titles include Esq., often used for an attorney (but not necessarily) in the United States who has passed a state bar examination, and CSA (casting) and ASCAP, which indicate membership in professional societies. The suffix CA is used for individuals who have completed the requirements to become a Chartered Accountant. The suffix CPA is also used for individuals who have completed the requirements to become a Certified Public Accountant. Similarly, Chartered Financial Analysts use the suffix CFA. Sommeliers (restaurant wine professionals) who have passed the Master Sommelier exam use the MS suffix. Engineers that are certified as a Professional Engineer in his or her state will use the suffix P.E. (P.Eng in Canada), Certified Professional Geologists use P.G., Certified Professional Logisticians use CPL, and Chartered Engineers use CEng. Likewise, Registered Architects sometimes use the suffix R.A., or more often a suffix such as AIA or RIBA that refers to their professional society. Examination Office personnel within the United Kingdom who are registered with the Examination Officers' Association use MEOA. In the United States, professional archaeologists registered with the Register of Professional Archaeologists use the suffix RPA.