Reference

PE seal requirements by state

Seal requirements for professional engineers in every US state, the District of Columbia, Puerto Rico and two Canadian provinces.

Each entry gives the licensing board, the wording the rule requires on the seal, the diameter it sets, and whether an expiration date, a signature date or a city has to appear — with a link to the provision it comes from.

Jurisdiction	PE legend	Diameter	Expiration date	Signature date	City on seal
Alabama	“Licensed Professional Engineer”	1⅝–2 in	No	Yes	No
Alaska	“Registered Professional Engineer”	no size set by rule	No	Yes	No
Arizona	“Registered Professional Engineer”	1½ in	No	Yes	No
Arkansas	“Licensed Professional Engineer”	1¼–2 in	No	Yes	No
British Columbia	“Professional Engineer, Province of British Columbia”	no size set by rule	No	Yes	No
California	“Professional Engineer”	min 1½ in	No	Yes	No
Colorado	“COLORADO LICENSED PROFESSIONAL ENGINEER”	1⅝ in	No	Yes	No
Connecticut	“LICENSED PROFESSIONAL ENGINEER”	1½ in	No	Yes	No
Delaware	“professional engineer”	no size set by rule	No	Yes	No
District of Columbia	“Professional Engineer”	no size set by rule	No	Yes	No
Florida	“PROFESSIONAL ENGINEER”	min 1⅞ in	No	Yes	No
Georgia	“Registered Professional Engineer”	1½ in	No	Yes	No
Hawaii	“Licensed Professional Engineer”	1½ in	Yes	No	No
Idaho	—	no size set by rule	No	Yes	No
Illinois	“Licensed Professional Engineer of Illinois”	no size set by rule	Yes	Yes	No
Indiana	“PROFESSIONAL ENGINEER”	1⅝–1⅞ in	No	Yes	No
Iowa	“Professional Engineer”	no size set by rule	Yes	Yes	No
Kansas	“PROFESSIONAL ENGINEER”	1⅝ in	No	Yes	No
Kentucky	“Licensed Professional Engineer”	1⅜–1⅝ in	No	Yes	No
Louisiana	“Professional Engineer”	1⅝–2 in	No	Yes	No
Maine	“Licensed Professional Engineer”	1¾ in	No	Yes	No
Maryland	“Professional Engineer”	1⅝–2 in	Yes	Yes	No
Massachusetts	“Professional Engineer”	1½ in	No	Yes	No
Michigan	“Licensed Professional Engineer”	no size set by rule	No	No	No
Minnesota	“Licensed Professional Engineer”	no size set by rule	No	Yes	No
Mississippi	“Licensed Professional Engineer”	1⅝–2 in	No	Yes	No
Missouri	“Professional Engineer”	1¾ in	No	Yes	No
Montana	“Professional Engineer”	1⅝–2 in	No	Yes	No
Nebraska	“Professional [Discipline] Engineer”	no size set by rule	No	Yes	No
Nevada	“Professional Engineer”	1.7 in	Yes	Yes	No
New Hampshire	“Professional Engineer”	1-9/16 in	No	Yes	No
New Jersey	“Licensed Professional Engineer”	1½ in	No	Yes	No
New Mexico	“professional engineer”	1½ in	No	Yes	No
New York	“Licensed Professional Engineer”	1¾ in	No	No	No
North Carolina	“Professional Engineer”	1½–1¾ in	No	Yes	No
North Dakota	“Registered Professional Engineer”	1¾ in	No	Yes	No
Ohio	“Registered Professional Engineer”	no size set by rule	No	Yes	No
Oklahoma	“Licensed Professional Engineer”	1⅝–1⅞ in	No	Yes	No
Ontario	“Licensed Professional Engineer”	no size set by rule	No	Yes	No
Oregon	“REGISTERED PROFESSIONAL ENGINEER”	min 2 in	Yes	No	No
Pennsylvania	“Registered Professional Engineer”	1¾ in	No	Yes	No
Puerto Rico	“Ingeniero Licenciado”	2 in	No	Yes	No
Rhode Island	“Registered Professional Engineer”	no size set by rule	No	Yes	No
South Carolina	“Registered Professional Engineer”	min 1½ in	No	Yes	No
South Dakota	“Professional Engineer”	1–2 in	No	Yes	No
Tennessee	“REGISTERED ENGINEER”	no size set by rule	No	Yes	No
Texas	“Licensed Professional Engineer”	no larger than 2 in	No	Yes	No
Utah	“Professional Engineer”	min 1½ in	No	Yes	No
Vermont	“Licensed Professional Engineer”	1½ in	No	No	No
Virginia	“PROFESSIONAL ENGINEER”	2 in	No	Yes	No
Washington	“REGISTERED PROFESSIONAL ENGINEER”	no size set by rule	No	Yes	No
West Virginia	“Registered Professional Engineer”	no size set by rule	No	Yes	No
Wisconsin	“WISCONSIN and PROFESSIONAL ENGINEER”	1⅝–2 in	No	Yes	Yes
Wyoming	“Professional Engineer”	1¾ in	No	Yes	No