---
title: "SecCertificateCopyNotValidBeforeDate(_:)"
framework: security
role: symbol
role_heading: Function
path: "security/seccertificatecopynotvalidbeforedate(_:)"
---

# SecCertificateCopyNotValidBeforeDate(_:)

## Declaration

```swift
func SecCertificateCopyNotValidBeforeDate(_ certificate: SecCertificate) -> CFDate?
```