27 April 2015 David D. Harwood, P.E. 18001 W 1061h St., Ste. 300 Olathe, KS 66061 david.harwood@terracon.com U.S. Department ofTransportation Docket Management System 1200 New JerseyAve., SE Washington, DC 20590 Re: Section 333 Exemption Request Terracon Consultants, Inc. Dear Sir or Madam, 

# lli!rracan

Pursuantto Section 333 ofthe FAA Modernization and Reform Act of2012 (the Reform Act) and 14 C.F.R. Part 11, Terracon Consultants, Incorporated and wholly owned subsidiaries (Terracon) hereby applies for an exemption from certain federal aviation regulations (FARs). Summary Terracon is an engineering and science consulting firm. Wewish to use small, unmanned aircraft systems (SUAS) for data collection, photography and videography in performance of environmental, geotechnical, geologic, and facilityassessment, aswell as construction monitoring activities. We request exemption from the following sections of 14 CFR: • 61.23(a) and (c) • 61.101(e)(4) and (5) • 61.V3(a) • 6·; .3'f·5(a) • 91.7(a) • 91.119(c) • 91.121 • 91
.151(a)(1 ) • 91.405(a) • 91.407(a)(1) • 91.409(a)(1)and(2) • 91.417(a)and(b)
Terracon Consultants, Inc. 18001 W 1 061h Street, Ste 300 Olathe, KS 66061 P [913]599 6886 F [913]599 0574 terracon.com
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**~\** ' j f oSection 333 Exemption Request 27 April 2015 

# lrerracon
We request relief to the extent necessary for typical SUAS operations, in line with what the FAA has granted recentlyfor similar requests. Other petitioners, as well as the FAA's responses, have explained the reasonswhy granting an exemptionto the sections listed abovewould notadversely affect safety. Operations Terracon requests to perform the following types ofoperations: Environmental Assessment: Terracon will use SUAS for data collection, photography and videography on parcels of land and improvements as part of our environmental services for transactional screenings (Phase 1111 site investigations), regulatory compliance, permitting, monitoring, and remediation projects. Geotechnical and GeologicAssessment: Terraconwill use SUASfordatacollection, photography and videography on parcels of land and improvements as part of our evaluation of geologic hazards (landslides, subsidence, rock fall, debris flow), mapping of geologic features, and site reconnaissance. Facility Assessment: Terracon will use SUAS for data collection, photography and videography on existing structures and infrastructure (towers, bridges, pipelines, pavement) as part of our assessment of building systems including exterior components such as roofing, windows, and exteriorfinish, as well as to supplement engineering assessment ofoperations and maintenance activities or needs. Construction Monitoring: Terracon will use SUAS for data collection, photography and videography as part ofourconstruction observation and site assessmentservicesforconstruction projects. In addition, Terracon will conduct flights for training, evaluating systems and pilots, and maintaining pilot proficiency. Safety Use of SUAS devices in the course of our services as described will improve workers' safety, reducing the need for workers to visit difficult, elevated, or contaminated locations. Additionally our proposed SUAS use will benefit the public by helping our clients operate safe construction sites, build and maintain safe structures, and protect the environment. The operations described above will typically occur in locations with restricted, controlled and/or managed access, such as undeveloped parcels, construction sites, and privatelyowned property. Terracon will manage exposure by establishing a500-foot protection zone where nonparticipating persons will be protected by barrierorstructure. Responsive • Resourceful • ReliableSection 333 Exemption Request 27 April2015 

# lrerracon

Terracon has worked in the environmental and construction industries for decades and has a strong safety culture. Planning and executing safe work, using and inspecting appropriate safety equipment, maintaining situational awareness, and stopping work when safety is in question are all part ofour everyday activities. Terracon will inspect, maintain, and operate all aircraft in accordance with manufacturers' manuals and checklists. This will include a preflight inspection to ensure that the aircraft is in a condition for safe flight. Unmanned aircraft systems We request to use the following unmanned aircraft and their associated control systems: • DJI Phantom 2+ o Quadcopter o Weight 2.9 lbs. • 3D Robotics DIY Quad o Quadcopter o Weight 

### 5.5 lbs. • 3D Robotics X8/X8M o Octocopter o Weight 7.71bs. • 3D Robotics Aero/Aero-M o Fixed-wing, single-engine o Weight 6.8 lbs. Telemetery, control, and video systems will use ordinary equipment operating in the 

### 915 MHz, 2.4 GHz, and 5.8 GHz bands. Pilots Each pilotwill hold an airman certificate and eithera medical certificate or avalid driver's license. Pilots will train with the aircraft and demonstrate proficiency before flying on job sites. Sincerely, Terracon Consultants, Inc.

SeniorVice President GIS Technical Lead
Responsive • Resourceful • Reliable