Spent two and half hours trying to contact people in charge of the directed self placement tests on two different campuses: Portland State and University of Colorado at Boulder. Yazmin sent me an email saying:
Here are a couple of portals to guided self-placement

Portland State
http://www.pdx.edu/advising/placement

University of Colorado at Boulder
http://www.colorado.edu/orientation/complete/step2asjmc.html

https://aac.colorado.edu/pwr/pwr.asp

Although these links were password protected, I was able to locate contact names and phone numbers from both colleges. I left email and voice messages with both colleges.

Portland State: Freshman Writing Placement Questionnaire
Requires a PSU computing account. I left a message with Director of Undergraduate Advising and Support Center, Mary Ann Barham (503) 725-5471
Here are some additional phone numbers to use in case this doesn't work out:
(503) 725-4005 (Undergraduate Advising and Support Center)
(503) 725-3822 (CLAS)
(503) 725-4357 Log in Help

I also learned that Portland State does not require any writing course for graduation, but recommends it for electives.
www.pdx.edu/advising/faqs/do-i-need-to-take-a-writing-course

University of Colorado at Boulder
Admission Counselor for Arizona: Adam Becenti (303) 492-1223
Directed Self Placement

Testing Services (GRE, LSAT etc) (303) 492-6970
English Department (303) 492-7381
Renzia (pronounced Ren-cha) Benninger (303) 492-6434 (left message)

English Department was unaware that they have a Directed Self-Placement exam.