; and (5) by adding at the end the following: (s) Context sensitive design (1) Context sensitive design standards The Secretary shall collaborate with American Association of State Highway Transportation Officials to ensure that any roadway design publications approved by the Secretary under this section provides adequate flexibility for a project sponsor to select the appropriate design of a roadway, consistent with context sensitive design principles. (2) Policies or procedures (A) In general Not later than 1 year after the Secretary publishes the final guidance described in paragraph (3), each State shall adopt policies or procedures to evaluate the context of a proposed roadway and select the appropriate design, consistent with context sensitive design principles. (B) Local governments The Secretary and States shall encourage local governments to adopt policies or procedures described under subparagraph (A). (C) Considerations The policies or procedures developed under this paragraph shall take into consideration the guidance developed by the Secretary under paragraph (3). (3) Guidance (A) In general (i) Notice Not later than 1 year after the date of enactment of this subsection, the Secretary shall publish guidance on the official website of the Department of Transportation on context sensitive design. (ii) Public review and comment The guidance described in this paragraph shall be finalized following an opportunity for public review and comment. (iii) Update The Secretary shall periodically update the guidance described in this paragraph, including the model policies or procedures described under subparagraph (B)(v). (B) Requirements The guidance described in this paragraph shall— (i) provide best practices for States, metropolitan planning organizations, regional transportation planning organizations, local governments or other project sponsors to carry out context sensitive design principles