| ~~~Date~~~  | ~~~~~~~Proceedings  and  Orders~~~~~~~~~~~~~~~~~~~~~ | 
| Jul 23 2013 | 
Application (13A126) to extend the time to file a petition for a writ of certiorari from August 15, 2013 to October 14, 2013, submitted to The Chief Justice.  | 
| Jul 30 2013 | 
Application (13A126) granted by The Chief Justice extending the time to file until October 14, 2013.  | 
| Oct 13 2013 | 
Petition for a writ of certiorari filed. (Response due November 18, 2013)  | 
| Nov 6 2013 | 
Consent to the filing of amicus curiae briefs, in support of either party or of neither party, received from counsel for the petitioner. | 
| Nov 15 2013 | 
Order extending time to file response to petition to and including December 18, 2013.  | 
| Nov 18 2013 | 
Brief amici curiae of International Municipal Lawyers Association, et al. filed.  | 
| Nov 26 2013 | 
Brief of respondents Brian Wynne, and  Karen Wynne in opposition filed. | 
| Dec 10 2013 | 
Reply of petitioner Comptroller of the Treasury of Maryland filed. | 
| Dec 11 2013 | 
DISTRIBUTED for Conference of January 10, 2014. | 
| Jan 13 2014 | 
The Solicitor General is invited to file a brief in this case expressing the views of the United States.   | 
| Apr 4 2014 | 
Brief amicus curiae of United States filed.  | 
| Apr 21 2014 | 
Supplemental brief of respondents Brian Wynne, and Karen Wynne filed.  | 
| Apr 22 2014 | 
DISTRIBUTED for Conference of May 15, 2014. | 
| May 19 2014 | 
DISTRIBUTED for Conference of May 22, 2014. | 
| May 27 2014 | 
Petition GRANTED.  | 
| Jun 5 2014 | 
Record received from Court of Appeals of Maryland. 1 Box. | 
| Jun 11 2014 | 
Consent to the filing of amicus curiae briefs, in support of either party or of neither party , received from counsel for the petitioner. | 
| Jun 13 2014 | 
Consent to the filing of amicus curiae briefs, in support of either party or of neither party, received from counsel for the respondents. | 
| Jul 10 2014 | 
The time to file the joint appendix and petitioner's brief on the merits is extended to and including July 29, 2014. | 
| Jul 10 2014 | 
The time to file respondents' brief on the merits is extended to and including September 19, 2014. | 
| Jul 29 2014 | 
Joint appendix filed.  | 
| Jul 29 2014 | 
Brief of petitioner Comptroller of the Treasury of Maryland filed.  | 
| Aug 1 2014 | 
Brief amicus curiae of United States filed.  | 
| Aug 5 2014 | 
Brief amici curiae of International Municipal Lawyers Association, et al. filed.  | 
| Aug 5 2014 | 
Brief amicus curiae of Multistate Tax Commission filed.  | 
| Aug 26 2014 | 
Motion of the Solicitor General for leave to participate in oral argument as amicus curiae and for divided argument filed.  | 
| Sep 4 2014 | 
SET FOR ARGUMENT on Wednesday, November 12, 2014. | 
| Sep 19 2014 | 
CIRCULATED | 
| Sep 19 2014 | 
Brief of respondents Brian Wynne, et ux. filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amicus curiae of American Legislative Exchange Council filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amicus curiae of American Association of Attorney-Certified Public Accountants, Inc. filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amicus curiae of National Association of Publicly Traded Partnerships filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amicus curiae of Maryland Chamber of Commerce filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amicus curiae of Chamber of Commerce of the United States of America filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amici curiae of Michael S. Knoll, and Ruth Mason filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amicus curiae of Council on State Taxation filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amicus curiae of Tax Foundation filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amici curiae of National Federation of Independent Business Small Business Legal Center, et al. filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amicus curiae of Tax Executives Institute, Inc. filed.  (Distributed) | 
| Sep 26 2014 | 
Brief amicus curiae of Tax Economists filed.  (Distributed) | 
| Oct 15 2014 | 
Application (14A403) to extend the time to file a reply brief on the merits from October 20, 2014 to October 23, 2014, submitted to The Chief Justice. | 
| Oct 16 2014 | 
Application (14A403) granted by The Chief Justice extending the time to file until October 23, 2014.  | 
| Oct 20 2014 | 
Motion of the Solicitor General for leave to participate in oral argument as amicus curiae and for divided argument GRANTED.  | 
| Oct 21 2014 | 
Application (14A426) to extend further the time within which to file petitioner's reply brief on the merits from October 23, 2014 to October 27, 2014, submitted to The Chief Justice. | 
| Oct 22 2014 | 
Application (14A426) granted by The Chief Justice extending the time to file until October 24, 2014.  | 
| Oct 24 2014 | 
Reply of petitioner Comptroller of the Treasury of Maryland filed.  (Distributed) | 
| Nov 12 2014 | 
Argued. For petitioner:  William F. Brockman, Acting Solicitor General, Baltimore, Md.; and Eric J. Feigin, Assistant to the Solicitor General, Department of Justice, Washington, D. C. (for United States, as amicus curiae.)  For respondents:  Dominic F. Perella, Washington, D. C. | 
| May 18 2015 | 
Adjudged to be AFFIRMED.  Alito, J., delivered the opinion of the Court, in which Roberts, C. J., and Kennedy, Breyer, and Sotomayor, JJ., joined.  Scalia, J., filed a dissenting opinion, in which Thomas, J., joined as to Parts I and II.  Thomas, J., filed a dissenting opinion, in which Scalia, J., joined except as to the first paragraph.  Ginsburg, J., filed a dissenting opinion, in which Scalia and Kagan, JJ., joined. | 
| Jun 19 2015 | 
MANDATE ISSUED. |