What you must do
Every contract of the recipient or subrecipient under the Federal award must contain the applicable provisions described in Appendix II to 2 CFR part 200; which provisions apply varies by contract amount and type. Applies to States and Indian Tribes even when they use their own procurement policies (per 200.317).
When it applies
Every contract executed by the recipient or subrecipient under the Federal award; specific Appendix II provisions trigger by contract dollar amount and type (construction, research, etc.).