Margaret (Mahas) Lange is a highly accomplished Trade Compliance Leader and Licensed Customs Broker (LCB) with over 30 years of expertise in import and export compliance across retail, manufacturing, and trade consulting sectors. Recognized for her ability to bridge regulatory knowledge with strategic business solutions, Margaret has driven multimillion-dollar duty savings initiatives, streamlined compliance operations, and led high-performing teams in both corporate and consulting settings.
In her role as Compliance Director for a Customs Brokerage firm, she developed internal training, documented procedures, managed the CTPAT program and validations, and monitored evolving trade regulations to keep internal teams and customers informed, including contributing content to newsletters, social media, website page development, and direct customer consultations. Additionally, in this role, she managed the Consulting Services, where she helped companies build trade compliance programs, including compliance audits, customized compliance manuals, and targeted training programs.
Previously, as Senior Manager of Import Compliance in the retail industry, she built and directed large-scale compliance operations, overseeing more than 87,000 entries annually and managing $3 billion in entered value, while achieving significant duty savings through First Sale and Free Trade Agreement programs. Additionally, in this role, she collaborated across the organization and with the vendor/supplier network to successfully build, manage, and maintain CTPAT compliance with Tier III validations.
In earlier roles in manufacturing sectors, she built her foundation in import and export compliance operations, NAFTA solicitation, product classification, corporate compliance training, duty drawback, and ISO procedure development and auditing.
Alongside her professional achievements, Margaret has developed a deep portfolio of expertise:
Industry Knowledge and Expertise:
Import/Export Regulations | Trade Compliance Auditing | Country of Origin Determination
Trade Program Development | HTS Classification | First Sale Valuation | Free Trade Agreements | Training Development & Delivery | CTPAT / Trade Compliance
Margaret also shares her expertise in the classroom, serving as Adjunct Instructor of Import Compliance. She contributes thought leadership as an Advisory Committee Member for the WCTC Supply Chain Management program and participates actively in national compliance organizations, including ICPA and NCBFAA.
Throughout her career, she has paired industry experience with professional advancement, maintaining key certifications and leadership commitments that enhance her credibility within the trade community:
Credentials & Affiliations
-Licensed Customs Broker (LCB)
-NCBFAA – Certified Customs Specialist (CCS)
-Advisory Board Member – Waukesha County Technical College (WCTC)
-Member – International Compliance Professional Association (ICPA)
-Member – National Customs Brokers & Freight Forwarders Association (NCBFAA)
-Bachelor of Arts in Professional Communications, Alverno College (with Honors)
Known for her ability to design effective compliance programs, mentor teams, and align regulatory frameworks with business efficiency, Margaret continues to be a trusted advisor to companies navigating the complexities of international trade.

Instructors Training Schedule
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