Answer:
National Institute of Engineering Ethics (NIEE); National Society of Professional Engineers (NSPE).
Explanation:
A code of ethics can be defined as a set of guidelines, principles, and standards adopted within an organization so as to guide the behavior of its employees and facilitate the decision-making process.
Generally, codes of ethics are mainly written in a document based on the core values of the organization and must strictly be adhered to by the members or employees. Therefore, code of ethics spells out the actions or conducts that are considered to be ethical, appropriate and acceptable by an organization, professional body or an industry.
The National Institute of Engineering Ethics (NIEE) and National Society of Professional Engineers (NSPE) are responsible for publishing codes of ethics to guide engineers.