Frequently asked questions

About MISRA and general questions

What is MISRA?

MISRA is a collaboration between manufacturers, component suppliers and engineering consultancies which seeks to promote best practice in developing safety- and security-related electronic systems and other software-intensive applications. To this end MISRA publishes documents that provide accessible information for engineers and management, and holds events to permit the exchange of experiences between practitioners.

Can I get involved in MISRA?

We welcome active participants in our working groups who are prepared to contribute to the technical work of these groups. From time to time we ask for external reviewers to comment on drafts of our documents. Please contact us if you are interested in either of these.

How can I keep in touch with MISRA developments?

Updates to MISRA’s activities will be published through this website under the “News” section.

Who runs MISRA?

MISRA is managed by The MISRA Consortium Limited, an independent not-for-profit entity.

MISRA publications

What activities is MISRA working on at the moment?

MISRA is currently working on further updates to MISRA C, a new version of MISRA C++, revisions to the MISRA AC set of documents and further content on safety arguments. Please visit the individual “Activities” page for more details.

Who develops MISRA documents?

MISRA documents are developed collaboratively by working groups made up of a broad cross-section of interests, following our overall philosophy of “guidance by engineers, for engineers”.

Can I get involved in MISRA?

We welcome active participants in our working groups who are prepared to contribute to the technical work of these groups. From time to time we ask for external reviewers to comment on drafts of our documents. Please contact us if you are interested in either of these.

Who wrote MISRA C?

MISRA C originated when two of the original members of the MISRA project, Ford and Land Rover, became aware they were working separately on coding guidelines for embedded C in automotive systems. They agreed a MISRA publication would be of greater benefit to the industry. The first version of MISRA C was developed by 7 primary authors from 5 of the MISRA consortium members. A key part of the development was to conduct a public review where over 30 individuals from 8 countries and a wide range of companies including tool vendors provided comments on a draft of the document helping to shape its final form.

MISRA webstore

How do I get my documents?

An account is automatically created for you as part of the check-out process when you buy documents. Visit your account to review your purchase history and download your documents. An email is also sent to you with a download link after you have paid for your purchases.

Why do I need an account?

The MISRA webstore operates on a “self service” basis to allow you to review your past orders and retrieve your document purchases.

I lost my password

Please follow the link on the “Login” page to reset your password

Why did my order fail?

The most common reason for orders failing is that card details cannot be verified by the payment processor. Please ensure that the address and postal/ZIP code you provide during checkout match the card. We will investigate providing different purchase and billing addresses in a future update.

Do I have to pay VAT?

The short answer is “it depends”. The current policy is as follows but it is based on our current understanding of VAT regulations and may be amended at any time

  • If you are located in the UK, then UK VAT is automatically applied to your purchase.
  • If you are located in the EU, we are required to collect EU VAT at the rate applicable in your country unless you are a bona fide business customer. If you are a business customer you must supply a valid VAT number for cross-border transactions which is automatically verified as part of the checkout process. Please be sure to enter a valid VAT number for these purposes, which you can check yourself at before making your purchase. If we cannot verify the VAT number you provided during checkout, then VAT will still be applied.
  • Otherwise VAT is not applied
What is your privacy policy?

Please follow the links to review our privacy policy and terms of sale. You agree to be bound by these when using the webstore and purchasing our documents.

Who can use a document I purchase?

Document sales through the webstore are sold on an individual user basis and may only be used by the named user. They may not be shared with anyone else. If you require shared use, please contact us for details of corporate licenses.

Can I buy more than one document in a transaction?

Yes you can purchase different documents and/or documents for more than one person in a single transaction. However please note that multiple copies purchased in this way are still single-user documents.

How do I get an invoice for my purchase?

An invoice is attached to completed orders, and you can also view it from the “My account” section of the webstore.

MISRA Bulletin Board

How do I reset or change my password?
  • If you have forgotten your password or it’s the first time you’ve visited the new forum area, you will need to reset your password, click Login > Lost Password and provide the email address you previously registered with
  • If you subsequently need to change your password, look under the user control panel (User CP) when logged in. Use the slider to expand the options under “Your Profile”
I have a question, where can I ask it?

Please post it on our Bulletin Board (see Discussions). Free registration is required to post.

Why can’t I log in to the Bulletin Board?

All registrations are reviewed and approved by an administrator. At busy times this may take a few days so please be patient if you don’t hear back from us right away.

Is my login the same for discussions as well as for purchases?

These two areas of the website require separate registration – you are not automatically registered for the Bulletin Board if you make a purchase