What are examples of the types of physical modifications or barrier removal that would be readily achievable in most cases?

Examples include the simple ramping of a few steps, the installation of grab bars where only routine reinforcement of the wall is required, the lowering of telephones,  restriping parking lots, and similar modest adjustments.

For additional information, take a look at the following resources:

FAQ: What is the process to request a reasonable accommodation in employment? 

FAQ: What does the term “readily achievable” mean?

Fact Sheet: Reasonable Accommodations in the Workplace