Are Italian records part of family search, how do I use them?
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See the page at Family History Research in Continental Europe, Italy — FamilySearch.org.
Some of these records can be viewed at home, but there is restricted access to some collections. For example, they can only be viewed by members of the LDS Church, or if you are at a Family History Centre. When you start to view the material in which you have an interest, advice will appear on the page regarding its availability.
You can also check for records related to Italy, or places therein, by going to the Catalog section at Explore FamilySearch Catalog of Resources — FamilySearch.org
A good place to start is to go to Records, under the Search Tab. Then you can go to Browse All Collections. https://www.familysearch.org/search/collection/list/
From there, you can click on Continental Europe, then Italy. That takes you to this page: https://www.familysearch.org/search/collection/list/?fcs=placeId%3A1927178&ec=region%3AEUROPE%2CplaceId%3A1927178
Some of those records are indexed; some are not. Here is an article that will help you: How do I find an image in an unindexed collection in Historical Records?