List of professional designations in the United States

Many professional designations in the United States take the form of post-nominal letters. Professional societies or educational institutes usually award certifications. Obtaining a certificate is voluntary in some fields, but in others, certification from a government-accredited agency may be legally required to perform specific jobs or tasks.
Organizations in the United States involved in setting standards for certification include the American National Standards Institute and the Institute for Credentialing Excellence. Many certification organizations are members of the Association of Test Publishers.

Architecture, interior design, landscape architecture, and planning

Name	Post-nominal	Agency
Registered Architect	RA	state licensing board
Professional Landscape Architect	PLA	state licensing board
Professional Planner	PP	state licensing board
Registered Interior Designer	RID	state licensing board
National Council of Architectural Registration Boards Certified	NCARB	National Council of Architectural Registration Boards
National Council for Interior Design Qualification Certified	NCIDQ	National Council for Interior Design Qualification
Association of Licensed Architects Member	ALA	Association of Licensed Architects
Association of Licensed Architects Fellow	FALA	Association of Licensed Architects
American College of Healthcare Architects	ACHA	American College of Healthcare Architects
American College of Healthcare Architects Fellow	FACHA	American College of Healthcare Architects
American Institute of Architects Member	AIA	American Institute of Architects
American Institute of Architects Fellow	FAIA	American Institute of Architects
American Society of Interior Designers Member	ASID	American Society of Interior Designers
American Society of Interior Designers Fellow	FASID	American Society of Interior Designers
Council of Educators in Landscape Architecture Member	CELA	Council of Educators in Landscape Architecture
Council of Educators in Landscape Architecture Fellow	FCELA	Council of Educators in Landscape Architecture
American Society of Landscape Architects Member	ASLA	American Society of Landscape Architects
American Society of Landscape Architects Fellow	FASLA	American Society of Landscape Architects
American Institute of Certified Planners Member	AICP	American Institute of Certified Planners
American Institute of Certified Planners Fellow	FAICP	American Institute of Certified Planners
Leadership in Energy and Environmental Design Accredited Professional	LEED AP	U.S. Green Building Council
Leadership in Energy and Environmental Design Green Associate	LEED GA	U.S. Green Building Council
Construction Specification Institute Member	CSI	Construction Specifications Institute
Construction Document Technologist	CDT	Construction Specifications Institute
Certified Construction Contract Administrator	CCCA	Construction Specifications Institute
Certified Construction Specifier	CCS	Construction Specifications Institute
Certified Construction Product Representative	CCPR	Construction Specifications Institute

Contract management

Fine and Performing Arts

Government

Insurance industry

Name	Post-nominal
Accredited Claims Adjuster	ACA
Accredited Claims Professional	ACP
Accredited Claims Professional Candidate	ACAc
Associate in Claims	AIC
Applied Microbial Remediation Technician	AMRC
Casualty General Adjuster	CGA
Certified Claims Adjuster	CCA
Certified Claims Professional	CCP
Certified Claims Professional Candidate	CCPc
Chartered Property Casualty Underwriter	CPCU
Chartered Property Casualty Underwriter candidate	CPCUc
Certified Forensic Litigation Consultant	CFLC
Certified General Adjuster	CrtGA
Certified Mold Specialist	CMS
Certified Mold Inspector	CMI
Certified Property Appraiser and Umpire	CPAU
Certified Property Loss Appraiser	CPLA
Certified Property Loss Umpire	CPLU
Casualty General Adjuster	CGA
Certified General Adjuster	CrtGA
Casualty General Adjuster	CGA
Executive General Adjuster	EGA
Fire & Smoke Restoration Technician	FSRT
General Adjuster, Board Certified	GA-BC
GrandMaster General Adjuster	GMGA
HAAG Engineering Certified Roofing Inspector Residential/Commercial	HCI-R/C
Insurance Claims Expert / Insurance Claims Expert Prof./ Practitioner	ICE; ICEP
Litigation Specialist / Litigation Consultant	LS-LC
Legal Principles Claims Specialist	LPCS
Master General Adjuster	MGA
Master Public Adjuster	MPA
Property Claims Law Associate	PCLA
Property General Adjuster	PGA
Registered General Adjuster	RGA
Senior Professional Public Adjuster	SPPA
Universal Claims Certification	UCC
Windstorm Insurance Network Professional	WIND-P
Water Remediation Technician	WRT

Law

Additionally, many jurisdictions grant some or all judges the right to use postnominal letters, which they generally employ in place of "Esq." The most common is "J.", but more complex systems exist. For instance, in New Jersey, Judges of the New Jersey Superior Court are entitled to the postnomials "J.S.C.", except for the a Presiding Judges of the Family, Civil, Criminal, and General Equity Parts in a vicinage, a vicinage assignment judge, Appellate Division judges and the Presiding Judge of the Appellate Division. Justices of the Supreme Court of New Jersey are entitled to the simple postnominal "J.", except for the Chief Justice, who uses "C.J."