The CIAO Core Membership

First Name

Last Name

First Name Required Last Name Required

Address Line 1:* Address Line 1 is Required

Address Line 2: Address Line 2 is not valid

City:* City is Required

Country:* Country is Required

State/Province:* State/Province is Required

Zip/Postal Code:* Zip/Postal Code is Required

Username:* Invalid Username

Email:* Invalid Email

Password:* Invalid Password

Password Confirmation:* Password Confirmation Doesn't Match

Password Strength Password must be "Medium" or stronger

PayPal Standard

Pay with PayPal

Pay via your PayPal account

No val Please fix the errors above

Pay C-AO

€9 / Year

Coupon Code:

Invalid Coupon Coupon applied successfully

Terms: €9 / Year

CIAO Core – Initial Payment

€9 / Year

€9.00

● LIVE CONTENT · Verified 15 May 2026 at 21:25 UTC · Always current at c-ao.com · © CIAO Standard Secretariat 2026

► Necessary Cookies Always Active

Necessary cookies enable essential site features like secure log-ins and consent preference adjustments. They do not store personal data.

► Functional Cookies Remark

Functional cookies support features like content sharing on social media, collecting feedback, and enabling third-party tools.

► Analytical Cookies Remark

Analytical cookies track visitor interactions, providing insights on metrics like visitor count, bounce rate, and traffic sources.

► Advertisement Cookies Remark

Advertisement cookies deliver personalized ads based on your previous visits and analyze the effectiveness of ad campaigns.