The Secretary adopts the following transport standards:

(a) Direct Project.

(1) [Reserved]

(2) Standard. ONC Applicability Statement for Secure Health Transport, Version 1.2 (incorporated by reference in §170.299).

(b) Standard. ONC XDR and XDM for Direct Messaging Specification (incorporated by reference in §170.299).

(c) Standard. ONC Transport and Security Specification (incorporated by reference in §170.299).

(d) Standard. ONC Implementation Guide for Direct Edge Protocols (incorporated by reference in §170.299).

(e) Delivery notification—

(1) Standard. ONC Implementation Guide for Delivery Notification in Direct (incorporated by reference in §170.299).

(2) [Reserved]

[77 FR 54284, Sept. 4, 2012, as amended at 79 FR 54478, Sept. 11, 2014; 80 FR 62743, Oct. 16, 2015; 85 FR 25940, May 1, 2020]