Free license terms
Machine Limits Standard. For non-commercial, research, evaluation and conformance-testing use. Version of November 10, 2026.
Machine Accountability Corporation ("MAC") publishes the Machine Limits Standard under a license from Epic Sky LLC ("Epic Sky"). Patents or patent applications owned by Epic Sky may cover implementations of the standard. These terms are the written agreement under which MAC grants a free sublicense. A person who makes, uses or operates an Implementation under these terms accepts them.
1. Grant
To the extent of MAC's rights, MAC grants to each person using an Implementation under these terms (the "Licensee") a non-exclusive, non-transferable, worldwide license, without charge, under the patents and know-how MAC licenses from Epic Sky, to make, use and operate Implementations of any published edition of the standard solely for (a) non-commercial use, (b) research, (c) evaluation and (d) conformance testing. An "Implementation" is any software, hardware, service, verifier, registry, package, record or other thing that conforms, or is intended to conform, to the standard. Evaluation and conformance testing by a business, carried out internally and not in a product or service offered to others or in the business's production operations, is covered by these terms.
2. What is not covered
These terms do not cover selling or offering for sale an Implementation, operating one for a fee, or using one in a product or service offered for payment or in the commercial operations of a business. Licenses for commercial use are available from MAC at licensing@machineaccountability.org. No right is granted by implication, and no right is granted in any trademark or name.
3. No further sublicensing
The Licensee may not sublicense these rights, except to a contractor acting solely for the Licensee and solely for the purposes in Section 1.
4. No warranty
THE STANDARD AND THE RIGHTS GRANTED UNDER THESE TERMS ARE PROVIDED "AS IS." MAC AND EPIC SKY MAKE NO REPRESENTATION OR WARRANTY, EXPRESS OR IMPLIED, INCLUDING AS TO VALIDITY, ENFORCEABILITY OR SCOPE OF ANY PATENT, THAT ANY PATENT WILL ISSUE, NON-INFRINGEMENT OF THIRD-PARTY RIGHTS, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
5. Limit of liability
NEITHER MAC NOR EPIC SKY IS LIABLE TO THE LICENSEE FOR INDIRECT, INCIDENTAL, CONSEQUENTIAL, SPECIAL OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, ARISING FROM THESE TERMS. BECAUSE NO FEE IS CHARGED, THE TOTAL LIABILITY OF MAC AND EPIC SKY ARISING FROM THESE TERMS IS LIMITED TO ZERO DOLLARS, TO THE EXTENT THE LAW PERMITS.
6. Epic Sky as beneficiary
Epic Sky LLC is an intended third-party beneficiary of Sections 1 to 5, 7 and 8, which protect its patents and know-how, and may enforce them directly.
7. Termination
These terms end for a Licensee whose material breach is not cured within thirty (30) days after written notice from MAC or Epic Sky.
8. General
These terms are consistent with, and subject to, MAC's license from Epic Sky. Delaware law governs them, without regard to conflict-of-laws rules. Questions: licensing@machineaccountability.org.