C-42 sanitation system

contractor license.

  Get Your C-42 Sanitation License

  Livestream or In-Person Classes

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Contractors License School

We can help you get your C42 License. Easy-peezy-lemon-squeezy. You just have to help us help you. By giving us a call. Or by continuing to scroll down and learning more about how to obtain your C42 contractors license.

contractor school class

C-42 Sanitation System Contractor

cool video, right? would be better with buttery-popcorn.

How do you get it?

Septic tank work ain’t easy. Ain’t that the truth? Why am I talking like Tom Sawyer? Or is it Huck Finn? Who knows?

Here’s a quote by Mark Twain:

“A man with a new idea is a crank until the idea succeeds.”

What does that have to do with anything, you ask. It has to do with everything. It’s time to stop thinking about getting your C42 Contractors License and actually get it. How do I know it’s time? Because you’re on this page. It’s a sign.

Even if you don’t believe in that stuff (I for sure don’t) you might as well believe in it.

Because why would you need a sign to level up in life and do something awesome?

Getting your license is awesome.

Anyway, that’s all beside the point. The point is, a C42 License is defined by the CSLB as such:

California Code of Regulations
Title 16, Division 8, Article 3. Classifications

A sanitation system contractor fabricates and installs cesspools, septic tanks, storm drains, and other sewage disposal and drain structures. This classification includes the laying of cast-iron, steel, concrete, vitreous and nonvitreous pipe and any other hardware associated with these systems.

Authority cited: Sections 7008 and 7059, Reference: Sections 7058 and 7059 (Business and Professions Code).


Moreoever, you know exactly what it is. Because you are one. If you aren’t a C42 contractor, then what are you doing here? If you’re trying to check your inventory of inline roller skates, you’ve come to the wrong page.

But if you’re a sanitation specialist and you’re trying to skate (and/or sail) into your destiny, you’ve landed on the exact right page.

If you’re just looking for information, then that’s fine too.

But, mostly, I’m trying to talk to the person who is trying to get their contractors license.

Get it?

Okay, it’s surprisingly simple: you’re about to feel how my Grandma felt when I taught her how to use her iPhone. Except probably with less back pain. Or so I hope.

Anyway, you only need a few things to get your contractors license.

A driver’s license (would help, but you don’t actually need it).

A SSN or a ITIN number. Simple enough.

Four years of experience doing sanitation type of work (the work in which you are trying to get licensed in). Even simpler.

And you must be over eighteen-years-old. Simplest.

You have those things? Let’s move on.

It would be helpful (but not required) if you had a collection of SNOWGLOBES.


I just looked up another website that explained how to get a C42 license, and they opened up their article by saying something like, “There are billions of people on the planet and sanitation systems are therefore more crucial than ever.”

And I was like for sure.

What a way to start an article? Just name a global problem.

I can do it too. Watch:

Hurricanes. So we need sanitation systems — especially water treatment systems and manholes and storm drains and drain fields and mainline sewers.

You get the point.

We need you.

And now that you feel self-satisfied that the world needs you because of the population and the hurricanes (not to mention the snowglobes, because they are actually completely irrelevant to this conversation), let’s move on.

NOW WHAT? (For Real This Time)

Okay, so you have f0ur years of experience.

You’re ready to get your license. You understand the responsibilities and the fact that you’re awesome.

In order to get your contractors license, you have to pass two tests with the state of California. Simple, simple, simple. Amen, amen, amen. This article is really going off the rails.

Cool, cool, cool.


The first test will examine your knowledge of the law and of the force.

But mostly of the law.

If you haven’t seen Star Wars, you’ve lost in life.

Go watch Star Wars and come back to this article.


This one will be easier for you because you already know everything there is to know about sewage systems and fields that drain sewage and field of dreams and whatnot. Trust me, most contractors (since you are journeyman-level if you’ve been doing it for at least four years) don’t usually struggle with this test.

They usually struggle with the law test, eh?

I’m pretending I’m from Canada — that’s why I wrote ‘eh?’ into the last sentence.


Once you pass the tests, you have to take an open-book asbestos test. It’s super easy. The previously-mentioned tests are not open book, which is why it is encouraged to attend a Contractor License School like ours.

Or someone else’s

But, mostly, ours.

Becuase it’s our job to give you all the knowledge, books, practice tests, and classes (be it online or in-person) for you to pass the state tests and get your contractors license.


In summary, we’d love to meet you and exchange snowglobes.

If you don’t have any snowglobes, that’s okay.

We don’t either.

But we do have a passion to see you succeed in your endeavor to get your license.

It’s why we exist.

We our a contractor school, therefore I am.

Call us.

What are you waiting for?

If you’re waiting for your Grandma to show up in your room as a ghost in a Dickens-style display of shocking you into doing the right thing, then you might as well just sign up right now.

Don’t get me wrong, that’s going to happen — the Grandma thing.

But it’s not going to inspire you to get your contractors license.

Because you don’t need inspiration. You have persperation. Lots of it. Buckets full. Because you’re a hard worker, ready to take on any challenge.

contractor school classes
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