ACS Skill Assessment Renewal/Membership

Hi Experts,

I understand that the ACS skill assessment is valid for one year from the date it has been issued. But, for renewal should we need to again submit all the documents/transcripts/certificates attested and send it to ACS - same like fresh application or we can do renewal without any document and just a renewal fee?

If we become a Member of ACS (MACS), our assessment will be valid as long as we extend our membership??

Please enlight me with the difference between the MACS and the skill assessment?

With Regards
Kums

Hello Experts,
Please respond