Global Chief of Staff Dialogue
COS26: Frequently Asked Questions
Dates, venue, timings and everything else you need for two days in Washington DC.
When and where will COS26 be held?
COS26 Dialogue takes place Thursday, October 22 and Friday, October 23, 2026.
Venue: Atlantic Council, 1400 L Street NW, 11th Floor, Washington, DC 20005.
What are the timings for the day?
Day 1 – Thursday, 22 October: registration opens at 8.30am, programming begins at 9.15am and concludes at 4.30pm, followed by a reception at Decatur House from 6.00pm.
Day 2 – Friday, 23 October: networking breakfast at 8.30am, programming begins at 9.15am, with closing remarks and final goodbyes at 4.30pm.
What is included in registration?
Full access to COS26 Dialogue sessions and materials.
Coffee and refreshments throughout the day. Lunch will also be provided.
One ticket to the reception at Decatur House.
What should I bring and how should I prepare?
Bring a notepad or tablet for notes, and business cards to facilitate connections.
Please aim to arrive between 8.30 and 9.00am to make the most of the day. The programme starts at 9.15am sharp.
Details of the reception?
The reception takes place at Decatur House, home to the White House Historical Association at 1610 H St NW.
Dress code is business attire.
Dietary needs should be shared with Events@csa.org.
Where should I stay?
Sofitel Washington DC Lafayette Square, 806 15th Street NW (8 minute walk).
Hamilton Hotel, 1001 14th Street NW (4 minute walk).
Hotel Zena, 1155 14th St NW (3 minute walk).
How do I get to the venue?
Metro: McPherson Square (Orange, Blue and Silver lines) and Farragut North (Red line) are the closest Metro stations to the Council.
From the McPherson Square Metro station, exit at 14th and I Streets NW. From the Farragut North Metro station, take the exit for Connecticut Avenue and L St East.
For information about the Washington, D.C. metropolitan area MetroRail and MetroBus visit wmata.com.
Is the venue accessible?
The Atlantic Council is fully equipped for accessibility needs.
Please share any specific requirements with Events@csa.org in advance so we can support you.
What networking opportunities are available?
The programme includes facilitated discussions and informal time for collaboration.
Breaks and lunch offer space to connect with the global chief of staff community.
Day 1 concludes with a networking reception.
What is the cancellation or substitution policy?
Please refer to our terms and conditions.
Substitution may be possible if arranged ahead of time.
Contact information
For questions about logistics, registration or accommodation please contact the CSA Events team: Events@csa.org.
Ready to join us in Washington DC?
Anything unanswered, write to the CSA Events team at Events@csa.org. Cancellations and substitutions are covered by our terms and conditions.