Sure, the federal government can now accept just a resume...you aren't required to address any of the qualification requirements...isn't that good news? No! It's bad advice! This was done in an effort to reduce the burden on federal applicants - which is a good thing - but if you don't address the qualification requirements, how can you expect the resume reviewer (HR Staffing Specialist) to know whether you are qualified or not?
Take a good look at the minimum qualification requirements AND the assessment factors (which are often called Knowledge, Skills and Abilities (KSAs) or the "nice to haves")...and make SURE that they are addressed either in your resume or in a separate attachment. Otherwise, it's very easy for that reviewer to set your resume aside and declare you NOT qualified.