H&S certification

I need to write the discussion about this article below maximum 200 words.

Why get H&S certification if you are a H&S professional? After reading the web-links for the both the safety and industrial hygiene certifications, discuss the pros and cons of certifications. Would you become certified?

http://www.abih.org/content/ih-defined

http://www.abih.org/about-abih/cih-caih

http://www.bcsp.org/ladder

http://www.bcsp.org/csp

https://www.osha.gov/SLTC/etools/safetyhealth/comp2.html