ACT Online Testing
Set-Up and Technical Requirements
Optimal Testing Experience
For an optimal online testing experience, avoid testing on any computer that takes 10 seconds or more to start and run applications.
Determining Testing Capacity
To determine if your test site has enough computers to test all your examinees, use the formula below.
[number of devices] x [number of days you plan to test in the window] = examinee capacity
Note: For State and District testing, there are 6 days available in the online testing window.
TestNav and PearsonAccessnext
TestNav™ is the test delivery engine used by examinees to take the tests. PearsonAccessnext ™ is the web application used by testing staff to manage participation, ordering of materials, and online testing.
See the table below for minimum hardware requirements for devices used for testing.
|Windows||macOS (OS X)||Chrome OS|
|Processor||x64-AMD, ARM, ARM64 or Intel-based||x64-AMD, ARM, ARM64 or Intel-based||Any|
|Memory||2 GB RAM minimum, 4 GB RAM recommended||2 GB RAM minimum, 4 GB RAM recommended||2 GB RAM minimum, 4 GB RAM recommended|
|Screen size||9.5 inch||9.5 inch||9.5 inch|
|Screen resolution||1024 x 768||1024 x 768||1024 x 768|
*Students who use assistive technology devices to access the ACT test must test on a laptop or desktop computer that allows an external keyboard or on paper. Tablets and full keyboard functionality on tablets for the administration of the ACT online is under development and will be available for future administrations.
ACT cannot provide support for customers utilizing virtualization/thin clients; therefore, testing should not occur using virtualization/thin clients.
Tablets, Chromebooks, and iPads
Chromebooks must be used with a keyboard and mouse/touch pad. Tablet mode is referring to using the device as a touchscreen device without a keyboard and mouse/touch pad attached.
iPads and Linux devices are not supported at this time. An examinee's score will be canceled if an iPad or Linux device is used for testing.
Tests that Require Kiosk Mode
Kiosk mode prevents students from accessing any other web pages or applications besides TestNav while testing.
Use the links below to download and set up the app for your supported operating system. Browser based testing is not supported.
|Operating System||Download Installable TestNav||Setup Instructions|
Chrome OS: Stable Channel (S) - 102 S+
Long-Term Support (LTS) - 102 LTS
|From Chrome Web Store||Set Up TestNav on Chromebook|
|macOS: 11, 12||From TestNav downloads||Set Up TestNav Desktop on OS X|
|Windows: 10 (x64 - 20H2, 21H1, 21H2) 11+ x64||From TestNav downloads||Set Up TestNav Desktop on Windows|
Firewall/Proxy Servers/Content Filtering
Open the following URLs and ports in any firewalls, proxy servers, or software used for internet content filtering:
Note: TestNav content is dynamically hosted in the cloud. No static IP addresses or ranges can be provided.
Requirements for Proctor Caching
See the table below for minimum hardware and software requirements for devices used for proctor caching.
|Hardware Requirements (Minimum)||Windows|
|Processor||2.0 GHz x86/x32 and x64|
|Memory||2 GB RAM minimum, 4 GB RAM recommended|
When using ProctorCache, you must open the following URL:Port combinations in any firewalls, proxy servers, or software used for Internet content filtering:
You must configure the firewall software to open both ports listed below, or both of your custom port settings, in the local network on all proctor caching computers:
|Default TCP/IP Port Settings||
|Custom Port Settings||If you set custom ports using instructions on the Set Up and Use ProctorCache page, configure firewall software to open BOTH custom ports, and NOT the two default ports listed above.|
Supported Operating Systems for Proctor Caching
These are the supported operating systems for devices used for proctor caching:
- Windows Server 2008, Windows 7, Windows Server 2012, Windows 8, Windows 10, Windows 2022, Windows Server 2016, or Windows Server 2019