Please note that the SAE Mobilus database is only available through a subscription.
SAE does offer a Reading Room of free standards you can access when you create a free account. These standards are ones that are authored by foreign governments and standards incorporated into the U.S. Code of Federal Regulations (CFR).
SAE standards cover automotive, aerospace, commercial vehicles, medical, and government/defense industries.
This database has a section to browse standards, that you can find in the links below the search box.

Once you are on the results page you can use the filters on the left. Filters include Industries, Date Published, Topics, and Author, which are mainly the issuing committees.
You might notice that Content Types include several different types of standards. The following are the definitions SAE establishes for those types:
Material Specification: A standard detailing consensus-based, ballot-approved requirements for creation and construction of materials
Recommended Practice: A standard detailing consensus-based, ballot-approved industry ideal for procedures or configurations
Specification: Standards that define the physical packaging or mounting of avionics and cabin equipment, communication, networking and data security standards, or a high-level computer language
Supplement: Content that provides additional information for standards but are not standards themselves
Technical Standard: A standard detailing consensus-based, ballot-approved industry norms that does not fall under other standards categories
Characteristic: Standards that define the form, fit, function, and interfaces of avionics, cabin systems, and aircraft networks
Information Report: A standard detailing consensus-based definitions and guidance for the parameters used to create other standards
SAE standards cover automotive, aerospace, commercial vehicles, medical, and government/defense industries.
If you would like to search for a specific standard or topic, you can enter your search in the search box on the homepage:

Results are ranked by relevancy so make sure if you are searching for a specific standard you are formatting it correctly, e.g. AS9100 instead of AS 9100. The results might have the same number but the ranking will be different.
Once you are on the results page you can use the filters on the left. Filters include Industries, Date Published, Topics, and Author, which are mainly the issuing committees.
To make sure you are just getting standards, select the following in Content Type:

The following are the definitions SAE establishes for those types:
Material Specification: A standard detailing consensus-based, ballot-approved requirements for creation and construction of materials
Recommended Practice: A standard detailing consensus-based, ballot-approved industry ideal for procedures or configurations
Specification: Standards that define the physical packaging or mounting of avionics and cabin equipment, communication, networking and data security standards, or a high-level computer language
Supplement: Content that provides additional information for standards but are not standards themselves
Technical Standard: A standard detailing consensus-based, ballot-approved industry norms that does not fall under other standards categories
Characteristic: Standards that define the form, fit, function, and interfaces of avionics, cabin systems, and aircraft networks
Information Report: A standard detailing consensus-based definitions and guidance for the parameters used to create other standards
There are several features in SAE Mobilus once you select your document. In addition to the document text, if there are any datasets, they will be under the datasets tab:

The redlining feature will allow you to compare the standard to historical versions:


You can create a free account and then select the annotation feature to highlight and add notes. If you haven't created an account already, clicking on this will prompt you to.

Once you have an account, you can highlight within the document and add notes:

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