Listed below are professional standards, codes and guidelines that address testing and assessment practices in the profession. You can sort this list by different headings to find a source that might best apply to your need.

Educational Measurement Professionals Code of Professional Responsibilities in Educational Measurement National Council on Measurement in Education (NCME) 1995
Educational & Psychological Professionals The Code of Fair Testing Practices in Education Joint Committee on Testing Practice (ACA, AERA, APA, NASP, NATD, & NCME) 2004
Test Users Responsibilities of Users of Standardized Tests (RUST) (3rd Edition) Association for Assessment in Counseling (AAC) 2003
Test Users & Test Publishers/Developers/Researchers ITC Guidelines on Computer-Based and Internet Delivered Testing International Test Commission (ITC) 2005
Test Publishers/Developers/Researchers ITC Guidelines on Adapting Tests International Test Commission (ITC) 2010
School Psychologists Professional Conduct Manual for School Psychology National Association of School Psychologists (NASP) 2000
Test Users ITC Guidelines on Quality Control in Scoring, Test Analysis and Reporting of Test Scores International Test Commission (ITC) 2013
Test Users ITC Guidelines on Test Use International Test Commission (ITC) 2013
Psychologists Ethical Principles of Psychologists and Code of Conduct (Standard 9: Assessments ) American Psychological Association's (APA) 2010
Industrial/Organizational Psychologists Principles for the Validation and Use of Personnel Selection Procedures (Fourth Edition) Society for Industrial and Organizational Psychology (Division 14 of the APA) 2003
Counseling Professionals American Counseling Association (ACA) Code of Ethics American Counseling Association (ACA) 2014
Educational Diagnosticians Nationally Certified Educational Diagnostician (NCED) Code of Ethics Nationally Certified Educational Diagnostician (NCED) N/A
Test Users Task Force on Test User Qualifications (TFTUQ) American Psychological Association (APA) 2000
Educational & Psychological Professionals Standards for Educational and Psychological Testing American Educational Research Association (AERA), American Psychological Association (APA) & National Council for Measurement in Education (NCME) 2014
Educational & Psychological Professionals Rights and Responsibilities of Test Takers: Guidelines and Expectations Joint Committee on Testing Practice (ACA, AERA, APA, NASP, NATD, & NCME) 1998
Teachers Standards for Teacher Competence in Educational Assessment of Students American Federation of Teachers, National Council on Measurement in Education, & National Education Association 1990
Educational Administrators Competency Standards in Student Assessment for Educational Administrators American Association of School Administrators, National Association of Elementary School Principals, National Association of Secondary School Principals, & National Council on Measurement in Education 1997