After completing the forms of ds26 1 and ds260 for immigration to the United States, do you need to provide any materials later?

Notarization before punishment, passport copy, economic guarantee I-864, tax bill for the last three years, W2, employer's letter, visa photo, relationship proof materials, such as group photo, chat record, call record, etc. If the following documents have not been submitted before, they need to be supplemented, such as beneficiary's birth notarization and kinship certificate (marriage notarization, etc.). ), as well as the divorce notarization of both parties to marriage and immigration.