Linea Peninsular's U.S. office will be closed on the following dates:
May, 31, 2010    Memorial Day
July, 05, 2010    Independence Day
Sept, 06, 2010   Labor Day
Nov, 25, 2010    Thanksgiving Day
Dec, 25, 2010    Christmas Day
Jan, 01, 2011     New Years Day

For U.S. Customs & Border Protection Closures:
2010 Federal Holidays

For Mexico Holidays:
Mexican Customs Page
and see below:
Feb, 01, 2010   Constitution Day
Mar, 15, 2010   Benito Juárez Birthday
May, 01, 2010   Labor Day
Sept, 16, 2010  Independence Day
Nov, 15, 2010   Revolution Day
Dec, 25, 2010   Christmas Day
Jan, 01, 2011    New Years Day