Versions of North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency on LawServer 2023 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2022 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2021 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2020 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2019 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2018 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2018 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2017 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2016 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2015 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2014 North Carolina General Statutes 90-143.4. Chiropractic clinical assistants; certification of competency 2013 North Carolina General Statutes 90-143.4. (Effective July 1, 2014) Chiropractic clinical assistants; certification of competency