1ST MSC
ARMY RESERVE
Fort Buchanan, PR
United States
1ST MSC
ARMY RESERVE
Fort Buchanan, PR
United States
1st MSC
Base Essentials
1st MSC is a ARMY RESERVE installation located in Fort Buchanan, PR. Use this guide to find housing information, BAH rates, gate hours, phone numbers, PCS resources, local schools, and military discounts.
Base Details
Type
Army Post
Branch
ARMY RESERVE
Command
USARC
Status
Active
Est.
1999
Acres
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Active Duty
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Civilian
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Population
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Economic Impact
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1st MSC History
The 1st Mission Support Command is a U.S. Army Reserve unit headquartered at Fort Buchanan, Puerto Rico. It serves as the primary Army Reserve presence in the Caribbean, providing administrative, logistical, and training support to reserve units across Puerto Rico and the U.S. Virgin Islands. The command plays an important role in humanitarian assistance and disaster response throughout the region.
Units Stationed
Unit
Nickname
Type
1st Mission Support Command (USAR)
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Historic Timeline
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Phone Directory
Key phone numbers for 1st MSC.
1st MSC Base Gates
Entry points, hours, and access requirements for 1st MSC.
Main Gate
Hours coming soon
Visitor Center Gate
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Back Gate
Hours coming soon
Latest News
Recent articles and updates from 1st MSC.
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PCS & Newcomers
Everything you need to know for your move to 1st MSC.
Welcome Center
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In-Processing
The 1st Mission Support Command is an Army Reserve command headquartered in Hawaii, providing support to Reserve units across the Pacific region. This is an administrative headquarters rather than a traditional garrison installation.
In-processing is coordinated through your gaining unit’s administrative office. Contact your unit S1 or commander before your report date for specific reporting instructions.
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Sponsor Program Information
Temporary Lodging Details
Open PCS Checklist (14 Items)
Trusted Base Intel. Since 1966.
Join 200,000+ personnel for base news, PCS tips, exclusive discounts, and critical benefits info.
Always free. Unsubscribe anytime.
Sponsor Program Information
Temporary Lodging Details
Housing & BAH
On-post housing, cost of living, and BAH info for 1st MSC.
On-Base Housing
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2026 BAH Calculator
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Cost of Living Around 1st MSC
85
15% Below National Average
Housing
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Schools & Education
K-12 schools, colleges, and education resources near 1st MSC.
School Liaison Officer
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Elementary Schools
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Middle Schools
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High Schools
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Colleges & Universities
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Education Benefits
Check Your GI Bill Eligibility
Post-9/11 GI Bill, Montgomery GI Bill, and more.
Where To Live
Popular Neighborhood
Suburban
Families
Short Commute
Neighborhood details coming soon
Nearby Community
Urban
Singles
Nightlife
Neighborhood details coming soon
Taxes & Finance
State tax policy and financial info for service members at 1st MSC.
State Income Tax
Military Pay
Retirement Pay
Vehicle Tax
Vehicle Registration
Coming soon
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Property Tax
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Spouse Income Tax
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Combat Zone
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Latest Videos from MyBaseGuide
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Pet Policies at 1st MSC
Pet policies, vet services, and resources at 1st MSC.
Emergency Vet
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On-Base Vet Clinic
Coming soon
Restricted Breeds
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Prohibited Animals
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Dog Parks
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Boarding & Kennels
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Pet Guidance
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Facilities & Services
On-base services and facilities at 1st MSC.
Commissary
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Exchange
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Medical
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Childcare & Youth
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MWR & Recreation
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Employment & Education
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Frequently Asked Questions
Common questions about 1st MSC.
01
How do visitor passes work?
Visitors must be sponsored by someone with base access and should contact the installation's Visitor Control Center in advance with their government-issued ID and vehicle info. Day passes are issued at the gate; extended access may require additional coordination.
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02
What is BAH and how is it calculated?
BAH (Basic Allowance for Housing) is a monthly stipend based on your pay grade, dependency status, and the duty station ZIP code — it is not counted as taxable income. Rates are updated each January; use the BAH Calculator in the Finance section to see current figures for 1st MSC.
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03
What should I do first after receiving PCS orders?
Contact the gaining installation's housing office and military transportation office (TMO/PPSO) immediately after orders are issued. Apply for on-base housing right away — waitlists at many installations run 6–18 months.
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04
Does TRICARE cover local providers?
TRICARE covers both the on-base military treatment facility and authorized civilian providers in the surrounding community. Use the provider finder at tricare.mil to confirm in-network options near 1st MSC.
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Question
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Data & Methodology
How we source this −
Information is compiled from DoD publications, official installation websites, and reviewed by military personnel. Independent publication — not affiliated with the U.S. Department of Defense.