The instructions which each state needs are printed on the cover sheet near the address of where to mail it.
Oregon:
Include a copy of your federal return (front and back only) with your Oregon return. Do not include federal schedules.
Include readable copies of Form(s) W-2 and 1099 showing Oregon income and tax withheld.
Include all pages of your Oregon return—pages 1–3 for original returns, and pages 1–4 for amended returns.
Source: Page 21 of this link, https://www.oregon.gov/DOR/forms/FormsPubs/publication-or-40-fy_101-043_2016.pdf
For ID:
ID W-2 and non-resident tax return. Along with complete copy of Federal Return.
See page 4 of this link: https://tax.idaho.gov/forms/EIN00046_10-30-2015.pdf
