Add membership criteria section with Must have / May have / Must not have at h3

content/en/membership/_index.md

@@ -8,6 +8,25 @@ Are you interested in joining C2PA to develop open standards that certify the so
 
 {{< join >}}
 
+# Membership Criteria
+
+### Must have
+
+- Agreement to execute the [C2PA Membership Agreement](https://cdn.platform.linuxfoundation.org/agreements/c2pa-fund.pdf)
+- Commitment to developing open standards for content provenance and authenticity
+- Ability to participate in C2PA technical working group activities
+
+### May have
+
+- Technical expertise in relevant fields such as digital media, AI, cybersecurity, or journalism
+- Existing products, services, or research related to content provenance or authenticity
+- Resources to contribute to working group development efforts
+
+### Must not have
+
+- Business activities that directly conflict with C2PA's mission of open content provenance standards
+- A record of prior termination from C2PA membership for cause
+
 # Steering Committee Members
 
 {{< memberlogos type="steering" class="grid-cols-3 md:grid-cols-4 lg:grid-cols-5 2xl:grid-cols-8 gap-5" >}}