It depends on what rules you want to override:
If you want to disable rewrite rules, you can put the .htaccess file in a subfolder containing RewriteEngine On , and the rules for the parent folder will be disabled (technically, replaced).
Similarly, if you want to disable authentication for a subfolder, you can create .htaccess containing Satisfy Any .
.htaccess cascades up, so Apache will look for the .htaccess file in the current folder and use the rules for it, then check the parent folder, etc.
Kelvin
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