Reminder: The form requirements for Form 10-Q and Form 10-K have been tweaked in nnection with the adoption of the Securities and Exchange mission rule requiring the submission of financial statements tagged using XBRL.

With the XBRL rule in effect as of April 13, the following paragraph is now required to be included on the ver page of both forms, beginning with the next Form 10-Q or Form 10-K filing, immediately following the paragraph addressing whether the registrant is current in its periodic reporting:

Indicate by check mark whether the registrant has submitted electronically and posted on its rporate Web, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files); this is followed by Yes and No check boxes.

The SEC staff has indicated that the Yes and No boxes should be left unchecked until the registrant is subject to the XBRL rules, Schulte Roth & Zabel attorneys Michael Littenberg and Farzad Damania note in their April 23 alert. So mpanies that don’t file an XBRL exhibit because they’re not yet required to do so should not check either box. Similarly, Littenberg and Damania note that registrants that elect to file an XBRL exhibit before its required phase-in date shouldn’t check either box.

For most registrants, this is their first brush with XBRL from a mpliance standpoint, says Littenberg. This form requirement is of a minor, technical nature, but it undersres that XBRL is ming and that registrants in many cases need to start planning for XBRL adoption.

Under the SEC’s XBRL mandate, roughly 500 of the largest domestic public mpanies—those with a worldwide public float of $5 billion or higher—must submit XBRL-formatted financial statements starting with their June 15, 2009, quarter. All other large aelerated filers must mply starting with their June 15, 2010, fiscal quarter, and all remaining public mpanies and foreign private issuers have to mply starting with their June 15, 2011, fiscal quarter.

As reported previously, XBRL U.S. has published an updated version of the U.S. Generally Aepted Acunting Principles Taxonomies, the digital dictionary mpanies will need to tag their financial statements in XBRL. The new release reflects industry changes and pronouncements by the Financial Acunting Standards Board inrporated since the 2008 release.