TTB 2022: A look at the current tug and tug regulatory landscape


Written by

Heather Ervin

On March 29, the first day of Marine Log’s TTB 2022 conference for the tug, tug and barge industry, America’s Waterway Operators (AWO) Vice President of Regulatory Affairs Caitlyn Stewart will present the landscape current regulation of tugs and tugs in the United States.

In his public address, Stewart will cover current and pending regulations that will or have impacted the TTB community. Additionally, she will examine the US regulatory landscape, including Subchapter M, the Vessel Incidental Discharge Act (VIDA), decarbonization, and more. for tugs and barge operators.

The public will be invited to ask Stewart questions immediately after his presentation.

AWO is partnering with Marine Log for the event scheduled for March 29-30 at the Renaissance Mobile Riverview Plaza Hotel in Mobile, Ala. TTB 2022 is the only event of its kind exclusively for the tug, tug and barge industry, where it brings the blue and brown water sectors to a single venue for two days of expert-led testimonials and education. experts who will enable attendees to make better business decisions in the future.


  • What does the outlook for the implementation of Sub-Chapter M look like at the end of the transition period;
  • When will the VIDA performance standards be released and what does this mean; and
  • If the global decarbonization campaign will result in new regulations.

Consult the complete agenda or register for TTB 2022.


Caitlyn Stewart

Stewart is Vice President of Regulatory Affairs for the AWO, the national trade association representing the inland and coastal tug, tug and barge industry. In this role, she promotes the industry to federal government and agencies and advocates for sound regulatory policies.

She joined AWO in May 2010 and has held the positions of Government Affairs Assistant, Government Affairs Associate, Government Affairs Manager, Senior Manager – Regulatory Affairs, Director – Regulatory Affairs and Senior Director – Business prior to assuming his current position in January 2021.

Stewart holds a Bachelor of Arts in Political Science from the University of Southern California in Los Angeles, California. Originally from Minneapolis, Minnesota, she now resides in Alexandria, Virginia.

VF 2022

The venue, located in Mobile Bay off the Spanish River, is not only close to museums, golf courses and the USS Alabama, it is also close to industry shipyards including Austal USA, Alabama Shipyard, Metal Shark Alabama, Port of Mobile, etc. There are many other shipyards, terminals and industry suppliers nearby.

In addition to two days of in-person discussions and dynamic Q&A sessions, the event will offer plenty of networking opportunities.

As the marine sector recovers from COVID-19 and manages the challenges of finding and retaining a quality workforce, the tug, tug and barge industry is expected to see continued growth and innovation in a new regulatory landscape and at the cutting edge of technological advances. The collaboration between Marine Log and the AWO allows both organizations to share resources and industry knowledge to support the APC industry at this critical juncture.

As always, the program will emphasize lessons learned from hard-won and real-life experience. In addition, the program will explore new ways to achieve economic and environmental goals through technological advancements, the search for new opportunities for the offshore APC market, and the latest trends in vessel design.


TTB 2022 guests will have the unique opportunity to visit Austal USA, one of the nation’s leading military defense shipyards, specializing in the design, construction and support of military and commercial vessels.

Space will be limited to 80 guests, who will board two buses at the Renaissance Mobile Riverview Plaza Hotel and travel to the Austal USA Shipyard in Mobile for a guided tour. Each bus will depart from a separate area of ​​the Dockyard – Main Campus (Bus 1) and West Campus (Bus 2).

Bus 1 will tour the exterior of the Mod Factory, where guests will circle the perimeter of the final assembly bays to see where the future USNS is located. Cody (EPF 14), USS Augusta (LCS 34), and the Kingsville (LCS 36) are being erected.

Guests will also tour the Austal USA ship finishing yard, where the future USS Canberra (LCS 30) and USS Santa Barbara (LCS 32) are moored for sea trials and delivery.

Bus 2 participants will begin at the Austal USA Ship Repair Facility, where Facility Manager Harley Combs will demonstrate Austal USA’s enhancements to the facility and explain what repair capabilities are available to clients.

Buses will swap places so that all tour participants can see both Austal USA campuses.

Austal USA’s primary shipbuilding facility in Mobile is a 165-acre campus on the east bank of the Mobile River that includes four final assembly bays, a 700,000 square foot module fabrication facility, two offices, an administrative building housing the Navy Support Program. staff and a drive-thru warehouse. Austal has also constructed a Vessel Finishing Yard which serves as the final location for its vessels prior to acceptance trials, delivery and departure.

In 2020, Austal USA purchased 15 acres of waterfront property on the west side of the Mobile River and established a vessel service and maintenance facility. The Austal USA West campus features a 20,000 ton Panamax-class floating dry dock and 100,000 square feet of covered repair facilities.

Austal USA entered the steel shipbuilding market in 2021, innovating the company’s steel fabrication line, positioning the company to start steel production in April 2022. The addition of steel fabrication of 117,000 square feet will house the latest state of the art computerized and robotic steel processing equipment that has been specified to meet all current and future demands of the United States Navy and United States Coast Guard.

  • Currently, the growing list of event sponsors includes Sea Machines and ABB (platinum); Austal USA, Bergan Marine Systems and Hiller Systems (gold);
  • Motor-Services Hugo Stamp Inc., Elkon, Karl Senner, Elliott Bay Design Group, MTU—A Rolls-Royce Solution, Schottel, Christie & Grey, Industrial Service Solutions, SSI, Marine Supply North America, and Moxie Media (silver); and
  • TowWorks, JonRie, Panolin, MOPS, Phoenix, Tnemec, United Safety & Survivability Corporation, Conrad Shipyard, Coastal Marine Equipment Inc., Separator Spares & Equipment, RIX, Vulkan Couplings, DMT Marine Equipment, Hockema Group Inc., Delgado Community College, and on-site alignment (bronze).
  • American Equity Underwriters (AEU) will sponsor the cocktail at the close of Day 1.

Registration for the event is now open. The early bird discount ends January 28.

For any questions about sponsorships, please contact David Harkey at [email protected]

Categories: Coastal, Interior, News, Regulations
Keywords: US Waterway Operators, AWO, Barge, Caitlyn Stewart, Decarbonization, Inland Waterways, Marine Log, Marine Regulations, Subchapter M, Tugboat, TTB, TTB 2022, Tugboat, Tugs & Barges, Ship Discharge Regulations, Vessel Incident Discharge Act

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