[[["易于理解","easyToUnderstand","thumb-up"],["解决了我的问题","solvedMyProblem","thumb-up"],["其他","otherUp","thumb-up"]],[["很难理解","hardToUnderstand","thumb-down"],["信息或示例代码不正确","incorrectInformationOrSampleCode","thumb-down"],["没有我需要的信息/示例","missingTheInformationSamplesINeed","thumb-down"],["翻译问题","translationIssue","thumb-down"],["其他","otherDown","thumb-down"]],["最后更新时间 (UTC):2025-08-18。"],[],[],null,["# Validate CPI certification\n\nThis page describes how to validate\n[Certified Professional Installer (CPI)](/spectrum-access-system/docs/key-terms#cpi)\ncertification in the Google Spectrum Access System (SAS) Portal.\nIf you are a CPI, you must verify your identity in the SAS Portal and sign\noff on [Citizens Broadband Radio Service Device (CBSD)](/spectrum-access-system/docs/key-terms#cbsd)\nconfigurations.\n\nBefore you begin\n----------------\n\nMake sure that you have the following:\n\n- CPI ID\n- CPI certificate file\n- CPI certificate password\n\nVerify your identity as a CPI\n-----------------------------\n\nMake sure that you verify your CPI identity periodically to show that your\ncredentials are still valid. To verify your identity as a CPI, follow these steps:\n\n1. Go to the [SAS Portal](https://wirelessconnectivity.google.com/sas).\n2. On the left, click **SAS Portal**.\n3. Select a network deployment, and then click **Open**.\n4. On the right, select your Google Account, and then click **Verify CPI identity**.\n5. Enter your **CPI ID** , **Certificate** , and **Certificate password**.\n6. Click **Verify**.\n\n The SAS Portal validates that you are a CPI by encoding a random\n string that uses your certificate file and password. It also decodes the string with\n the corresponding public key in the\n [WInnForum CPI database](https://cbrs.wirelessinnovation.org/).\n The validation takes\n place locally in the browser, so your certificate file stays on your computer.\n7. After your CPI identity is verified, repeat step 4 and sign off on any\n additional CBSD configurations.\n\nWhat's next\n-----------\n\n- [Register a CBSD that needs CPI validation](/spectrum-access-system/docs/portal#register-cbsd).\n- Learn about [Spectrum Access System](/spectrum-access-system/docs/overview).\n- Learn about [key SAS terms](/spectrum-access-system/docs/key-terms).\n- [Troubleshoot SAS issues](/spectrum-access-system/docs/troubleshooting)."]]