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ARCHIVED 2020-03-01, DATE APPROXIMATE · VERSION 20200301_rev01 · COMPARED WITH 20200202_rev01
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| 1 | 1 | [Internet Security Research Group (ISRG)](https://www.abetterinternet.org/) is the non-profit entity that operates the Let's Encrypt certificate authority. Some policies that apply to Let's Encrypt are ISRG policies, some are specific to Let's Encrypt. |
| 2 | 2 | |
| 3 | 3 | ## Let's Encrypt Subscriber Agreement |
| 4 | 4 | |
| 5 | - Currently in Effect | |
| 6 | - [v1.2, November 15, 2017](https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf) | |
| 7 | - [U.S. Government Amendment, September 22, 2015](https://letsencrypt.org/documents/LE-USG-SA-Amendment-Sept-22-2015.pdf) | |
| 8 | - [U.S. State and Local Government Amendment, December 28, 2016](https://letsencrypt.org/documents/LE-US-State-Local-SA-Amendment-Dec-28-2016.pdf) | |
| 9 | - Historical / Informational | |
| 10 | - [Differences from v1.1.1 to v1.2](https://letsencrypt.org/documents/LE-SA-v1.1.1-v1.2-diff.docx) | |
| 11 | - [v1.1.1, August 1, 2016](https://letsencrypt.org/documents/LE-SA-v1.1.1-August-1-2016.pdf) | |
| 12 | - [Differences from v1.0.1 to v1.1.1](https://letsencrypt.org/documents/LE-SA-v1.0.1-v1.1.1-diff.docx) | |
| 13 | - [v1.0.1, July 27, 2015](https://letsencrypt.org/documents/LE-SA-v1.0.1-July-27-2015.pdf) | |
| 5 | Current Agreements | |
| 14 | 6 | |
| 7 | - [v1.2, November 15, 2017](https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf) | |
| 8 | - [U.S. Government Amendment, September 22, 2015](https://letsencrypt.org/documents/LE-USG-SA-Amendment-Sept-22-2015.pdf) | |
| 9 | - [U.S. State and Local Government Amendment, December 28, 2016](https://letsencrypt.org/documents/LE-US-State-Local-SA-Amendment-Dec-28-2016.pdf) | |
| 10 | ||
| 15 | 11 | ## ISRG Certificate Policy |
| 16 | 12 | |
| 17 | 13 | - [v2.4, January 21, 2020](https://letsencrypt.org/documents/isrg-cp-v2.4/) |
| 14 | ||
| 18 | 15 | - [v2.3, July 3, 2019](https://letsencrypt.org/documents/isrg-cp-v2.3/) |
| 19 | 16 | - [v2.2, September 20, 2018](https://letsencrypt.org/documents/isrg-cp-v2.2/) |
| 20 | 17 | - [v2.1, February 6, 2018](https://letsencrypt.org/documents/isrg-cp-v2.1/) |
| 21 | 18 | - [v2.0, May 22, 2017](https://letsencrypt.org/documents/isrg-cp-v2.0/) |
| 22 | 19 | - [v1.3, April 13, 2017](https://letsencrypt.org/documents/ISRG-CP-v1.3.pdf) |
| 23 | 20 | - [v1.2, May 5, 2016](https://letsencrypt.org/documents/ISRG-CP-May-5-2016.pdf) |
| 24 | 21 | - [v1.1, September 9, 2015](https://letsencrypt.org/documents/ISRG-CP-September-9-2015.pdf) |
| 25 | 22 | - [v1.0, May 5, 2015](https://letsencrypt.org/documents/ISRG-CP-May-5-2015.pdf) |
| 26 | 23 | |
| 27 | 24 | ## ISRG Certification Practice Statement |
| 28 | 25 | |
| 29 | 26 | - [v2.7, January 21, 2020](https://letsencrypt.org/documents/isrg-cps-v2.7/) |
| 27 | ||
| 30 | 28 | - [v2.6, July 3, 2019](https://letsencrypt.org/documents/isrg-cps-v2.6/) |
| 31 | 29 | - [v2.5, November 14, 2018](https://letsencrypt.org/documents/isrg-cps-v2.5/) |
| 32 | 30 | - [v2.4, September 20, 2018](https://letsencrypt.org/documents/isrg-cps-v2.4/) |
| 33 | 31 | - [v2.3, May 4, 2018](https://letsencrypt.org/documents/isrg-cps-v2.3/) |
| 34 | 32 | - [v2.2, March 10, 2018](https://letsencrypt.org/documents/isrg-cps-v2.2/) |
| 35 | 33 | - [v2.1, February 6, 2018](https://letsencrypt.org/documents/isrg-cps-v2.1/) |
| 40 | 38 | - [v1.2, September 22, 2015](https://letsencrypt.org/documents/ISRG-CPS-September-22-2015.pdf) |
| 41 | 39 | - [v1.1, September 9, 2015](https://letsencrypt.org/documents/ISRG-CPS-September-9-2015.pdf) |
| 42 | 40 | - [v1.0, May 5, 2015](https://letsencrypt.org/documents/ISRG-CPS-May-5-2015.pdf) |
| 43 | 41 | |
| 44 | 42 | ## Let's Encrypt Privacy Policy |
| 45 | 43 | |
| 46 | - [September 19, 2019](https://letsencrypt.org/privacy/) | |
| 44 | - [Current Privacy Policy](https://letsencrypt.org/privacy/) | |
| 47 | 45 | |
| 48 | 46 | ## Let's Encrypt Trademark Policy |
| 49 | 47 | |
| 50 | - [Let's Encrypt Trademark Policy](https://letsencrypt.org/trademarks/) | |
| 48 | - [Current Trademark Policy](https://letsencrypt.org/trademarks/) | |
| 51 | 49 | |
| 52 | 50 | ## ISRG Code of Conduct |
| 53 | 51 | |
| 54 | - [ISRG Code of Conduct](https://www.abetterinternet.org/code-of-conduct/) | |
| 52 | - [Current ISRG Code of Conduct](https://www.abetterinternet.org/code-of-conduct/) | |
| 55 | 53 | |
| 56 | 54 | ## ISRG Non-Discrimination Statement and Policy |
| 57 | 55 | |
| 58 | - [ISRG Non-Discrimination Statement and Policy](https://www.abetterinternet.org/nondiscrimination/) | |
| 56 | - [Current ISRG Non-Discrimination Statement and Policy](https://www.abetterinternet.org/nondiscrimination/) | |
| 59 | 57 | |
| 60 | 58 | ## ISRG Legal Transparency Reports |
| 61 | 59 | |
| 62 | - [October 1, 2019](https://letsencrypt.org/documents/ISRG-Legal-Transparency-Report-October-1-2019.pdf) | |
| 63 | - [April 1, 2019](https://letsencrypt.org/documents/ISRG-Legal-Transparency-Report-April-1-2019.pdf) | |
| 64 | - [October 1, 2018](https://letsencrypt.org/documents/ISRG-Legal-Transparency-Report-October-1-2018.pdf) | |
| 65 | - [April 1, 2018](https://letsencrypt.org/documents/ISRG-Legal-Transparency-Report-April-1-2018.pdf) | |
| 66 | - [October 1, 2017](https://letsencrypt.org/documents/ISRG-Legal-Transparency-Report-October-1-2017.pdf) | |
| 67 | - [April 1, 2017](https://letsencrypt.org/documents/ISRG-Legal-Transparency-Report-April-1-2017.pdf) | |
| 68 | - [October 1, 2016](https://letsencrypt.org/documents/ISRG-Legal-Transparency-Report-October-1-2016.pdf) | |
| 69 | - [April 1, 2016](https://letsencrypt.org/documents/ISRG-Legal-Transparency-Report-April-1-2016.pdf) | |
| 70 | - [July 1, 2015](https://letsencrypt.org/documents/ISRG-Legal-Transparency-Report-July-1-2015.pdf) | |
| 60 | - [Current Report, October 1, 2019](https://letsencrypt.org/documents/ISRG-Legal-Transparency-Report-October-1-2019.pdf) | |
| 71 | 61 | |
| 72 | 62 | ## WebTrust Audits |
| 73 | 63 | |
| 74 | ## Operational Audits | |
| 75 | ||
| 76 | 64 | - August 31, 2019: [Trust Services Principles and Criteria for Certification Authorities Version 2.1](https://www.cpacanada.ca/webtrustseal) |
| 77 | 65 | - August 31, 2019: [WebTrust Principles and Criteria for Certification Authorities - SSL Baseline with Network Security - Version 2.3](https://www.cpacanada.ca/webtrustseal) |
| 66 | ||
| 78 | 67 | - November 30, 2018: [Trust Services Principles and Criteria for Certification Authorities Version 2.1](https://letsencrypt.org/audits/ISRG-2018-WebTrust-for-CAs-Report.pdf) |
| 79 | 68 | - November 30, 2018: [WebTrust Principles and Criteria for Certification Authorities - SSL Baseline with Network Security - Version 2.3](https://letsencrypt.org/audits/ISRG-2018-WebTrust-for-CAs-SSL-Baseline-Report.pdf) |
| 80 | 69 | - December 15, 2017: [Trust Services Principles and Criteria for Certification Authorities Version 2.0](https://letsencrypt.org/audits/ISRG-2017-WebTrust-for-CAs-Report.pdf) |
| 81 | 70 | - December 15, 2017: [WebTrust Principles and Criteria for Certification Authorities - SSL Baseline with Network Security - Version 2.2](https://letsencrypt.org/audits/ISRG-2017-WebTrust-for-CAs-SSL-Baseline-Report.pdf) |
| 82 | 71 | - December 15, 2016: [Trust Services Principles and Criteria for Certification Authorities Version 2.0](https://letsencrypt.org/audits/ISRG-2016-WebTrust-for-CAs-Report.pdf) |
| 83 | 72 | - December 15, 2016: [WebTrust Principles and Criteria for Certification Authorities - SSL Baseline with Network Security - Version 2.0](https://letsencrypt.org/audits/ISRG-2016-WebTrust-for-CAs-SSL-Baseline-Report.pdf) |
| 84 | 73 | - December 15, 2015: [Trust Services Principles and Criteria for Certification Authorities Version 2.0](https://letsencrypt.org/audits/ISRG-2015-WebTrust-for-CAs-Report.pdf) |
| 85 | 74 | - December 15, 2015: [WebTrust Principles and Criteria for Certification Authorities - SSL Baseline with Network Security - Version 2.0](https://letsencrypt.org/audits/ISRG-2015-WebTrust-for-CAs-SSL-Baseline-Report.pdf) |
| 86 | ||
| 87 | ## Readiness Audits | |
| 88 | ||
| 89 | 75 | - September 9, 2015: [Trust Service Principles and Criteria for Certification Authorities Version 2.0](https://letsencrypt.org/audits/ISRG-2015-WebTrust-for-CAs-PITRA-Report.pdf) |
| 90 | 76 | - September 9, 2015: [WebTrust Principles and Criteria for Certification Authorities - SSL Baseline with Network Security - Version 2.0](https://letsencrypt.org/audits/ISRG-2015-WebTrust-for-CAs-SSL-Baseline-PITRA-Report.pdf) |
| 91 | 77 | |
| 92 | 78 | ## Certificate Problem Reports |
| 93 | 79 | |
| 94 | 80 | To report private key compromise, certificate misuse, or other types of fraud, compromise, misuse, inappropriate conduct, or any other matter related to certificates, please email [cert-prob-reports@letsencrypt.org](mailto:cert-prob-reports@letsencrypt.org). |