Well there are only a few complaints in the State against mold companies. Some are valid and others are consumers looking to get out of paying a bill. This is true for any  service related industry so minor numbers in the consumer complaint list, really show the industry is running well without State regulation.  That being said having a general mold law that requires companies that provide mold testing and remediation services to be certified through the State is a good idea but confusing regulations that force two companies to work togehter to service one client are going to make a service that most people can now afford and are going to need at some point in their life a nightmare.   Give consumers a list of certified individuals, allow them the chance to choose who they wish for the services and you have created a good law.  Give them a place to complain when needed and you have a regulation.  In regard to the testing and remediation argument which seems to be the theme here. An I.E.P. Indoor Environmental Professional is vaguely explained by the IICRC S520. There is no single license, designation or certification that qualifies an IEP according to the S520 and having the I.E.P independent from the remediation firm is only a general recommendation by the IICRC S520.  There are too many headaches when the company that has to write the scope of work is different from the company that actually performs the work.  To many hands in the pot make for a legal nightmare.  If people need a second opion come clearance time then they have the ability to get their opinions anytime they want from another company. Making it mandatory makes zero sense. There are two States where this is mandatory.  Go look at the legal complaints in those states and you will get your answer to the two company theory.   Take advise from a seasoned industry professional, keep it simple.  One company can easily provide both services. People can always get second opinions or additional clearance inspections which is typical for any industry.  Educating consumers and making sure there are proper disclosures in the real estate market should be a huge part of this regulation but seem to be lacking. Protecting people from unknowingly buying moldy homes or renting them is desperately needed. Good luck to those writing these laws. The industry seems to regulate itself well so keep it simple.