- openbook Competition Bulletin 2018-7: 2018 ATVMX National Championship Class Top 10 Now Available TimeSeptember 4, 2018 2018 ATVMX National Championship Class Top 10 Now Available
- openbook Competition Bulletin 2018-6: Updated Championship Points Drops TimeJune 18, 2018 With the cancelation of the Muddy Creek ATVMX, it is necessary to revise the Class Championship drops.
- openbook
Competition Bulletin: 2018-5: Muddy Creek ATVMX National Canceled TimeMay 29, 2018 Muddy Creek ATVMX National Canceled - openbook Competition Bulletin 2018-4: Foreign Rider Eligibility Requirement TimeApril 10, 2018 Foreign Rider Eligibility Requirement
- openbook Competition Bulletin 2018-3: Tentative 2018 ATVMX Practice and Race Orders Available to Public Comment TimeMarch 13, 2018 Tentative 2018 ATVMX Practice and Race Orders Available to Public Comment
- openbook Competition Bulletin 2018-2: Tentative 2018 ATVMX National Classes and Supplemental Rules Revised and Reissued TimeJanuary 8, 2018 Tentative 2018 ATVMX National Classes and Supplemental Rules Revised and Reissued
- openbook Competition Bulletin 2018-1: Tentative 2018 ATVMX National Classes, Supplemental Rules and Practice Order Available to Public Comment TimeJanuary 1, 2018 Tentative 2018 ATVMX National Classes, Supplemental Rules and Practice Order Available to Public Comment
- openbook Competition Bulletin 2017-7: Request for Proposals: 2018 ATVMX Supplemental Rules and Class Structure TimeNovember 6, 2017 Request for Proposals: 2018 ATVMX Supplemental Rules and Class Structure
- openbook
Competition Bulletin 2017-6: Updated Championship Points Drops TimeJune 22, 2017 Updated Championship Points Drops - openbook Competition Bulletin 2017-5: ATVMX Race Orders Clarification TimeMay 10, 2017 ATVMX Race Orders Clarification
- openbook
Competition Bulletin 2017-4: High Point ATVMX National Canceled TimeMay 1, 2017 High Point ATVMX National Canceled - openbook
Competition Bulletin 2017-3: High Point ATVMX National Postponed TimeApril 25, 2017 High Point ATVMX National Postponed
