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Welcome to the NASC ePortal

Frequently asked questions about accessing the NASC ePortal

Which devices can be used to access the NASC ePortal?

The NASC ePortal can be accessed via a web browser on Windows devices (computers, laptops and tablets), Apple Mac computers and laptops, Apple iOS devices (iPhones and iPads) and Android devices (phones and tablets).

Access is via a web browser, so you need to be connected to the internet. A Wi-Fi or 4G+ connection is preferred.

You should be using an up-to-date, supported operating system, otherwise your web browser may be out-of-date and may experience problems. The operating systems supported by their suppliers are Windows 10 - 11, MacOS 10.15+, iOS 15+ and Android 10+.

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Which web browsers can be used?

The NASC ePortal will work on most up-to-date browsers, but some offer better performance than others.

On Windows, Chrome, Firefox and the latest version of Microsoft Edge (the new edition built on Chromium) are preferred.

It is also possible to use Internet Explorer 11 or the original edition of Microsoft Edge, although their graphical performance is limited, especially in the 3D display. Internet Explorer will be retired by Microsoft on 15th June 2022, so it will not be supported by the NASC ePortal after this date.

It is not possible to use previous versions of Internet Explorer (released prior to October 2013) because they do not support the 3D graphics and other facilities required by the NASC ePortal.

On an Apple Mac, iPhone or iPad, the default Safari browser works well, as does Chrome.

Chrome is also recommended for Android devices.

You can upgrade your web browser or choose a new one here for free - it just takes a few minutes.

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Is an Android or iOS app available?

Not yet, but this is planned following the launch of the NASC ePortal - more information will be provided soon.

When it is launched, you will log into the app with your subscription account, just as when using a web browser. An internet connection will also be required.

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Are printed copies of the TG20 guides available?

Printed copies of the TG20:21 Operational Guide, Design Guide and User Guide are available for purchase from the NASC online shop. The purchase prices are available from the NASC website.

Please note that printed copies are not included with a subscription to the NASC ePortal.

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I have the TG20:13 eGuide - how do I register my free subscription?

The free subscription offer for users of the TG20:13 eGuide is still open for those that purchased the TG20:13 eGuide in 2020 - 2021.

You can activate your subscription using the serial numbers from each of your copies of the TG20:13 eGuide. You don't need to contact the NASC - your account is set up ready to be activated.

You need to enter the serial number from the TG20:13 eGuide, which you can find by pressing the button on the TG20:13 eGuide home screen.

Each serial number can only be registered once, otherwise you will see an error message: 'This account has already been registered'.

This error message will also be displayed if you try to use the same email address to register more than one serial number. Each email address can only be used for one subscription account, because it is the unique user name for the account.

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My registration email hasn't arrived

When you activate your subscription, an automated email will be sent with a link to activate your account.

If it doesn't arrive within a few minutes, it may have been moved to your Junk folder. If you have a company email account, you may need to contact your IT administrator to unblock it.

If it still hasn't come through, please contact our technical support team, using the contact details below, who will be happy to help.

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Need help?

If these answers didn't solve your problem, please contact the CADS technical support team, who will be happy to help.

CADS are providers of software and services for the construction industry, who have partnered with the NASC to develop the NASC ePortal and TG20:21.

The support desk is open between 09:30 - 17:00, Monday to Friday.

+44 (0)1202 603733

If you have a query about purchasing or renewing a subscription, please contact the NASC for help.

CADS technical support