What Clean Truck Check is and why you need to log in

Clean Truck Check is a web portal run by the South Coast Air Quality Management District (SCAQMD) in Southern California. If you operate heavy-duty trucks in the South Coast Air Quality Management District's jurisdiction — which covers Los Angeles, Orange, San Diego, and Ventura counties — you use this system to register your vehicles, report emissions data, and track compliance with the Heavy-Duty Truck and Bus Regulation.

The portal lets you manage your fleet's registration status, upload required documents, check inspection schedules, and view violation notices if they're issued. You cannot operate a truck in the district without being registered in the system, and you cannot register without logging in first.

The login process itself is straightforward, but the account setup depends on whether you are a first-time user or returning to an existing account. The steps differ slightly, and knowing which path applies to you saves time.

Key Takeaways

  • Clean Truck Check is the official SCAQMD portal for registering and managing heavy-duty trucks in Southern California's air quality district.
  • You access the portal at the SCAQMD website; there is no separate app or alternative login system.
  • First-time users must create an account with a valid email address and password before logging in.
  • Returning users log in with their email and password; if you forget either one, SCAQMD provides a password reset link on the login page.
  • Your account is tied to your company or owner information, so you may need your USDOT number or company registration details during setup.

Finding the Clean Truck Check login page

The Clean Truck Check portal is hosted on the SCAQMD website. Go to www.aqmd.gov and look for the "Clean Truck Check" link, usually found in the main navigation or under a "Permits & Compliance" section. Alternatively, search "Clean Truck Check SCAQMD" in your browser to find the direct portal link.

Once you reach the portal homepage, you will see a login box on the right side of the page or a prominent "Log In" button. Do not use a general SCAQMD account if you have one for other purposes — Clean Truck Check requires its own separate login.

Bookmark the portal page once you find it, since you will return to it regularly to update vehicle information, check compliance status, and respond to any notices from SCAQMD.

Creating a new account if you do not have one yet

If you are logging into Clean Truck Check for the first time, you will need to create an account. Look for a "Create Account," "Register," or "New User" link near the login box. Click it to begin the registration process.

You will be asked to provide your email address, create a password, and confirm basic information about your company or operation. SCAQMD may ask for your USDOT number, company name, and the state where your business is registered. Have these details ready before you start.

Your password must meet SCAQMD's security requirements, which typically include a minimum length and a mix of uppercase, lowercase, and numeric characters. Write down your password in a find location, or use a password manager to store it. You will need it every time you log in.

After you submit your registration information, SCAQMD will send a confirmation email to the address you provided. Open that email and click the confirmation link to set up your account. Your account is not live until you complete this step.

Logging in with your email and password

Once your account is active, go to the Clean Truck Check login page and enter your email address in the first field. Enter your password in the second field. Click the "Log In" button.

If your credentials are correct, you will be taken to your dashboard, where you can see your registered vehicles, compliance status, and any pending actions. If you see an error message, double-check that you are using the correct email address and that your password is typed exactly as you created it — passwords are case-sensitive.

If you log in from a new device or location, SCAQMD may ask you to verify your identity through a code sent to your email. This is a security measure. Check your email inbox (and spam folder) for the verification code, enter it on the portal, and you will be logged in.

Resetting your password if you forget it

On the Clean Truck Check login page, look for a "Forgot Password" or "Reset Password" link, usually located below the login button or near the password field. Click it.

Enter the email address associated with your account. SCAQMD will send a password reset link to that email. Open the email, click the reset link, and you will be taken to a page where you can create a new password. Follow the same password requirements as you did during account creation.

If you do not receive the reset email within a few minutes, check your spam or junk folder. If it is not there, verify that you are using the correct email address. If you are still unable to reset your password, contact SCAQMD directly — their contact information is on the main website.

What to do if you cannot log in

If you have entered your credentials correctly but still cannot log in, the issue is usually one of a few things. First, confirm that your account was fully activated — if you never clicked the confirmation link in the registration email, your account exists but is not active. Check your email inbox and spam folder for the original confirmation message.

Second, check that you are using the email address you registered with. If you have multiple email addresses, you may have created your account with a different one than you are currently trying. If you are unsure which email you used, contact SCAQMD and provide your company name and USDOT number.

Third, make sure your browser is up to date and that you are not using an older or incompatible version. Clear your browser's cache and cookies, then try logging in again. If you are still blocked, SCAQMD's support team can help — look for a "Contact Us" or "Support" link on the portal or the main SCAQMD website.

Managing your account after you log in

Once you are logged in, you can update your fleet information, add or remove vehicles, upload required documents, and check your compliance status. Your dashboard will show you any vehicles that are due for inspection, any violations or notices, and the renewal dates for your registrations.

If your company information changes — such as your address, phone number, or authorized contact — update it in your account settings. SCAQMD uses this information to send you notices and compliance reminders, so keeping it current is important.

You can log out by clicking the logout button, usually located in the top right corner of the page or in a menu. Always log out when you are finished, especially if you are using a shared or public computer.

Frequently Asked Questions

Is there a mobile app for Clean Truck Check?

No. Clean Truck Check is a web-based portal only. You access it through a web browser on a computer, tablet, or phone. The website is designed to work on mobile devices, but there is no separate app to read.

Can multiple people from my company log in with the same account?

Yes, but it is not recommended. If multiple people need access, contact SCAQMD to ask about creating separate user accounts tied to the same company. This way, SCAQMD can track who made changes and when, which is useful for compliance records.

What if I registered my truck but I am not seeing it in my dashboard?

Registration changes can take a few hours to appear in the system. If your truck still does not show up after a day, log out and log back in to refresh your dashboard. If it is still missing, contact SCAQMD with your vehicle's VIN and USDOT number.

Do I need to log in every time I want to check my compliance status?

Yes. Each time you visit the portal, you will need to enter your email and password. SCAQMD does not keep you logged in between sessions for security reasons.

What should I do if I think someone else has accessed my account?

Change your password when ready using the "Forgot Password" link. Then contact SCAQMD to report the suspected unauthorized access. They can review your account activity and help find it.