institution rules

docs/CMIP6Plus/Rules/intitutions.md

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+# Institutions
+
+???+ abstract "Instructions"
+
+    The rule guides describe what is required to submit a new item, and how to correctly fill out the forms and avoid submission errors. 
+
+New institutions are added to the [cmor-mip-tables](https://github.com/PCMDI/mip-cmor-tables/blob/main/MIP_institutions.json). 
+
+To check if an institutions has already been added, try adding its ROR code and acronym in the [new institution] (add link here) submission form. 
+
+## Acronym
+This is what we shall use to identify an institution within relevant scripts. This must be unique and should not change. 
+
+??? warning "Once data has been submitted using this handle, it cannot be changed, even if your institute rebrands."
+
+*Rules* : <b> Unicode, `[A-z]`, case-sensitive. Max 25 (tbc) characters. </b>
+
+## Full Name
+This is the full name of the institution. This should match >90% with one of the approved names in ROR. 
+
+*Rules* : <b> Unicode, `[A-z]`, case-sensitive. Max 25 (tbc) characters. </b>
+
+
+
+## ROR
+<img src='https://raw.githubusercontent.com/ror-community/ror-logos/main/ror-icon-rgb.svg' style='height:20px'/>
+ROR [Research Organisation Repository](ror.org) is a global, community-led registry of open persistent identifiers for research organizations. This gives us an ability to assign a unique identifier to each institution, which persists even after they have rebranded, merged, split, shut down, and re-emerged. 
+
+*Rules* : <b> An alphanumeric string of 9 characters as defined by ROR.org entry. </b>
+
+