The District of Columbia becomes the last jurisdiction in the country to enact an engineering licensure law.
NSPE launches the first National Engineers Week. With U.S. troops in Korea, President Harry Truman recognizes the week and emphasizes that with "the peace of the world hanging in the balance," the engineering profession should "rededicate itself to the peace and well-being of our common country." An editorial in The American Engineer summed up the inaugural event: "Couple a first attempt with the small amount of money from NSPE funds that was available for the effort, and one feels much hope for the future."
The first income and salary survey is published by NSPE and is sold to members for 50 cents per copy. According to the survey, 50% of engineers earned at least $7,850.
The Board of Ethical Review is established. NSPE created the Board to interpret the Code of Ethics. It was initially composed of seven individuals representing various areas of practice and serving three-year terms. The Board was not created to evaluate specific violations, but to take real and fictional circumstances and analyze the ethics involved.
The Engineers' Creed is officially adopted by NSPE.
NSPE officially recognizes the NSPE Auxiliaries, giving NSPE member spouses an active role in the Society. For many years, the Auxiliaries helped raise money for engineering scholarships.
NSPE publishes the Criteria for Professional Employment of Engineers to promote the professional status of the engineer within the workplace.
NSPE breaks ground for a new headquarters building at 2029 K Street in Washington, D.C. The building is dedicated during the Society's Winter Meeting in 1956.
The Professional Engineers in Private Practice is created.
The Professional Engineers in Government Practice Division is authorized and organized a year later.
NSPE plays an active role in the meeting at Michigan State University that establishes the Junior Engineering Technical Society as a nonprofit organization.