Comprehensive List of ACT Test Form Codes (Sorted by First Release)
16MC1 - June 2015 (online)
16MC2 - Apr 2015 (online)
18MC4 - June 2017 (online)
19MC5 / A10 - Dec 2017
20MC6 / A11 - Jun 2018
21MC8 / C01 - Jul 2020
22MC9 / C03 - Dec 2019
23MC1 / E23 - Dec 2021
24MC1 / F12 - Jun 2023
59F - 2005-06 free ACT test
61C - 2007-08 free ACT test
64E - 2009-10 free ACT test
67C - 2014-15 free ACT test
A10 - Dec 2017
A11 - Jun 2018
B02 - Jun 2019 (TIR)
B04 - Apr 2019
B05 - Dec 2018
C01 - Jul 2020
C03 - Dec 2019
D03 - Dec 2020
D05 - Apr 2021
D06 - Jun 2021
E23 - Dec 2021
E25 - Apr 2022
E26 - Jun 2022
F07 - Dec 2022
F11 - Apr 2023
F12 - Jun 2023
G01 - Sep 2023
G19 / Z13 - Apr 2024
G20 - Jun 2024
H11 - Sep 2024
H18 - Feb 2025
H31 - Dec 2024
Z04 - Apr 2021
Z08 - Apr 2022
Z13 - Apr 2024
Z14 / H18 - Feb 2025 (accommodated version)
Z15 - prior accommodations form
Z18 - prior accommodations form