The [=Team=] <em class="rfc2119">must</em> solicit <a href="#ACReview">Advisory Committee review</a>

of every new or substantively modified Working Group or Interest Group charter,

except for either:

* a charter extension

* substantive changes to a charter that do not affect the way the group functions in any significant way.

The review period <em class="rfc2119">must</em> be at least 28 days.

The following are examples of substantive changes that would not require an [=Advisory Committee Review=]:

the addition of an in-scope deliverable,

a change of [=Team Contact=],

or a change of [=Chair=].

Such changes must nonetheless be announced

to the [=Advisory Committee=]

and to <a href="#wgparticipant"> participants in the Working</a> or <a href="#igparticipant">in the Interest Group</a>,

and a rationale must be provided.

<em class="rfc2119">must</em> highlight important changes

As part of the Advisory Committee review of any new or substantively modified Working Group charter,

Such a request must be submitted with a Member's comments

in response to the Call for Review.

Upon receipt of any such request,

the [=Team=] <em class="rfc2119">must</em> ensure

that the Call for Participation for the Working Group

occurs at least 60 days

after the Call for Review of the charter.