Used Ride-On Sweeper for sale (9,275)

Condition: used, Year of construction: 2022, operating hours: 100 h, functionality: fully functional, type of input current: three-phase, input current: 30 A, input frequency: 50 Hz, input voltage: 400 V, Fully automatic filling machine from the Boloni brand. ATEX version. Bwodpfx Aezx Urieqwjt Suitable for filling 25L containers. Filling by weight using load cells. The machine fills 4 containers simultaneously. Automatic capper and palletizing robot. Connection between the various components via conveyor belts (steel). The machine has only a few operating hours. The machine will be decommissioned in February/March 2027.

Condition: good (used), Flame cutting system, torch, oxyfuel cutting system, machine cutting torch, flame cutting machine, cutting torch, cutting machine, oxyfuel cutting machine, gas cutting torch -Manufacturer: Messer Griesheim, machine cutting torch, flame cutting machine Bsdpfx Aqsxy Hnfewowt -Type: Quicky Electronic -Cutting speed: adjustable -Voltage: 220 V 40 W -Dimensions: 550/280/H300 mm -Weight: 8.4 kg

Condition: good (used), mileage: 248,982 km, power: 88 kW (119.65 HP), first registration: 01/2019, fuel type: diesel, tire size: 205/60R16, axle configuration: 4x2, wheelbase: 3,060 mm, fuel: diesel, color: white, driver cabin: day cab, gearing type: mechanical, number of gears: 6, emission class: euro6, number of seats: 3, total length: 4,830 mm, total width: 1,840 mm, total height: 1,850 mm, loading space length: 1,960 mm, loading space width: 1,430 mm, loading space height: 1,190 mm, Year of construction: 2019, Equipment: ABS, Bluetooth, air conditioning, central locking, electric window regulation, power mirror, traction control, = Additional Options and Accessories = - Halogen lamp - Manual - Radio/cassette - Standard - Fabric - Partition = Notes = Number of axles: 2, Configuration: 4x2, Payload: 691 kg, Unladen weight: 1594 kg, Gross vehicle weight: 2285 kg, Towing capacity, unbraked: 750 kg, Towing capacity, middle axle, braked: 1318 kg, Type of cabin: Single cab, Air conditioning, Number of airbags: 1, Rear window wiper, Parking assistance: Rear, Electric windows, Electric mirrors, Partition, Radio/cassette, Color: White, Type of lighting: Halogen lamp, Bluetooth, Engine power: 88 kW (118 hp), Fuel: Diesel, Euro: 6, Drive technology: Timing belt, Type of gearbox: Manual, Gears: 6, Power steering, ABS, ASR, Starter battery, Body type: extended, Side paneling, Roof rack: Standard, Side doors: 1, Rear closure: Double door, Central locking, Number of seats: 3, Seat arrangement: 1+2, Seat cover: Fabric, Seat adjustment: Manual, 1.5 TDCI 120 L2H1 Airco, Tire type: All-season tires = Additional Information = General Information Number of doors: 1 Registration number: V-99-DKG Axle Configuration Tire size: 205/60R16 Brakes: Disc brakes Suspension: Coil spring suspension Weights Unladen weight: 1,594 kg Payload: 691 kg GVW: 2,285 kg Functional Loading platform height: 57 cm Bwodpfx Aszykxnjqwst Maintenance APK (Technical Inspection): valid until 04.2027 Condition Technical condition: good Optical condition: good Damage: none Number of keys: 1 Financial Information Leasing price: €130 per month (delivery van, 72 months); Inquire for more information and conditions.

Condition: used, mileage: 484,000 km, power: 368 kW (500.34 HP), first registration: 12/2018, fuel type: diesel, overall weight: 33,000 kg, axle configuration: > 3 axles, color: red, gearing type: automatic, emission class: euro6, loading space length: 6,400 mm, Year of construction: 2018, Equipment: ABS, air conditioning, crane, Manufacturer Volvo Model FM500 8x2 Pusher tridem Hiab 099 B3 Radio Bodezyd U Njpfx Aqwowt Year 2018 Condition Good Serial Number YV2XT40F5JA824305 Ref. nr. 348168 Reg. date: Hk: 500 Km: 484000 Gearbox: I-shift Eurotype: 5 Diesel tank: 1 Tank liter: 570 Air conditioning: ? Leather seats: ? Radio: ? Disc brake: ? ABS: ? Engine brake: ? Tire Size: 385/65 - 385/55 - 315/80 - 385/55 Cover% left 60 - 10 - 20 - 20% Front suspension: Air Suspension rear: Air Wheelbase: 5600 mm. Toolbox: ? Hydraulic system: ? Total weight: 33000 kg. Net weight: 14400 kg. Load capacity 18600 kg. Wire hoist: ? Manufacturer: Multilift 28 t. 3 w. Crane Make: Hiab 099 B-3 Year: 2017 Tonsmeter: 9 Procrastination: 3 Remote control: ?

Condition: used, mileage: 579,435 km, power: 291 kW (395.65 HP), first registration: 01/2017, fuel type: diesel, number of seats: 61, gearing type: mechanical, emission class: euro6, color: other, brakes: retarder, Year of construction: 2017, Equipment: ABS, air conditioning, cruise control, disability-friendly, = Additional Options and Accessories = - DVD player - Air conditioning - Front refrigerator - Wheelchair lift - Sleeping cabin - Toilet - Webasto heater Bjdoynlclopfx Aqwowt = Further Information = Height: 367 cm Damage: None = Company Information = We are an international company based in Belgium, near Brussels (+/- 20 km). Belgian Bus Sales is your ideal partner for the buying and selling of used buses and has a large parking area that serves as a showroom. We always have a large number of buses of all makes, capacities, and models in stock, covering every price range. We can find the right tourist, school, or city bus for you, tailored to your needs or budget. All information is subject to change without notice. Errors, prior sale, and typographical errors excepted. Opening hours for viewing used buses: Mon-Fri: 08:30 - 12:00, 12:30 - 17:00. (We speak Polish: Agata) We speak your language: Dutch, French, English, Spanish, Portuguese, Italian, Russian, Polish, and more.

Condition: excellent (used), mileage: 100 km, power: 382 kW (519.37 HP), fuel type: diesel, axle configuration: 8x4, wheelbase: 6,600 mm, fuel: diesel, color: white, driver cabin: sleeper cab, gearing type: automatic, number of gears: 12, emission class: euro6, total length: 9,100 mm, total width: 2,530 mm, total height: 3,930 mm, permissible axle load (axle 1): 10,000 kg, permissible axle load (axle 2): 9,500 kg, permissible axle load (axle 3): 9,500 kg, Year of construction: 2027, Equipment: ABS, Bluetooth, air conditioning, central locking, crane, cruise control, electric window regulation, fog lights, power mirror, traction control, trailer coupling, = Additional Options and Accessories = - Adaptive Cruise Control - Sunroof - Euro 6 emission standard - Driver airbag - Remote central locking - Speed limiter - Adjustable steering wheel - Air conditioning - LED daytime running lights - Leather steering wheel - Air suspension - Air horn - Radio DAB MP3 Bluetooth 4.0 - Disc brakes - Sun visor - Power Take-Off (PTO) - Tow hitch = Additional Information = General Information Year of manufacture: 2027 Technical Information Number of cylinders: 6 Engine displacement: 12,777 cc GVWR: 39,000 kg Bedpfx Aezyur Eoqwowt Axle Configuration Front axle: Max. axle load: 10,000 kg; Steered Rear axle 1: Twin tires; Max. axle load: 9,500 kg Rear axle 2: Twin tires; Max. axle load: 9,500 kg Rear axle 3: Lift axle; Max. axle load: 8,000 kg; Steered Functional Crane: MULTILIFT HAAKARM 26 TON MULTILIFT ULTIMA26S 59 FLEX, year of manufacture 2027, behind the cab Body manufacturer: MULTILIFT Z-KRAAN 19 TON HIAB JONSERED iZ.191 R Dumper: Rear Condition Technical condition: very good Optical condition: very good

Condition: used, mileage: 337,212 km, power: 324 kW (440.52 HP), first registration: 04/2015, fuel type: diesel, number of seats: 55, gearing type: automatic, emission class: euro6, color: other, brakes: retarder, Year of construction: 2015, Equipment: ABS, air conditioning, cruise control, disability-friendly, navigation system, trailer coupling, = Additional options and equipment = Bjdpfx Aeyq D Aioqwewt - DVD - Air conditioning - Front refrigerator - Wheelchair lift - Sleeping cabin - Toilet - USB connections - Webasto = Further information = Height: 390 cm Damage: none = Company information = We are an international company based in Belgium, approximately 20 km from Brussels. Belgian Bus Sales is your ideal partner for buying and selling used buses and offers a large parking area serving as a display space. We always have numerous buses of all makes, capacities, models, and price ranges in stock. We can help you find the right coach, school, or city bus tailored to your needs and budget. All information is provided without guarantee. Errors, prior sale, and typing mistakes excepted. Viewing times for used buses: Mon-Fri: 08:30 - 12:00, 12:30 - 17:00. Mowimy po Polsku (Agata). We speak your language: Nederlands, Français, English, Español, Português, Italiano, Русский, Polski, and more.

Year of construction: 2023, condition: new, Lightest Semi Trailer Concrete Mixer in the world with capacity of 12 m³. Bsdpfsgavc Aox Aqwjwt

Condition: ready for operation (used), Year of construction: 2011, Road sweeper SMB Sobernheimer UKM 2.2, year of manufacture 2011, serial number 550069, water tank, debris container, side brushes, the brush discs are new, mounting for Liebherr Volvo CAT, water spray system presumably defective, 4 wheels need to be replaced. Bsdpfxoixnrrj Aqwswt

Condition: new, Year of construction: 2026, General information Field of application: Construction Reference number: 3 Drivetrain Bedpfx Aqeq Ixrwjwjwt Make of engine: Parker Weights Empty weight: 600 kg Functional CE mark: yes Condition General condition: very good Technical condition: very good Visual appearance: very good Other information Fits to following machines: 5-10ton Delivery terms: FOB Working pressure: 230 bar Required hydraulic flow: 90 l/min Additional information Please contact Ö. Inalkac for more information AJCE ACR52H mini concrete crusser is 550kg and fits on 5~10 ton excavator. ACR52H is with hydraulic rotatio, double cylinder and speed up valve. Available from our Netherlands warehouse. vergruizer, pulverizer, crusher, Abbruchscheren, Betonpulverisierer, concasseur à béton, Betonbrecher, trituradora de concreto, дробилица за бетон, kruszarka do betonu, concasor de beton, betongkross, betonknuser

Condition: good (used), Year of construction: 1995, operating hours: 980 h, functionality: fully functional, Technical data: Sweeping width: 1200 mm Hopper capacity: 200 litres Bodpfx Aoxpfyfoqwjwt Hopper discharge: hydraulic Filter area: 7 m² Suction fan: 1 pc. Engine: Lombardini Focs Cylinders: 2 pcs. Cooling system: water-cooled Power: 12 HP Drive: hydrostatic front-wheel drive Weight: 670 kg Side brush: 1 pc.

Condition: excellent (used), Year of construction: 2020, Used MS Sand Plant Year 2020 Bwjdpfx Aqezx Hruswst Made In France Consists Of 2 x Dewatering Screens, Coarse Sand Cyclone, Fines Cyclone Dewatering Screens Are Each 12ft x 6ft Complete With Electric Motors, Pumps, Pipework, Handrails, Framework Excellent Condition This Is A Serious Sand Plant. Built To Handle Large TPH

Condition: used, This listing is for a Morgan Mini Monitor Series 900 Geiger Counter Bedpexzgz Ijfx Aqwewt Over the years Mini Monitor 900s have earned an excellent reputation for reliability, performance, versatility, ease of use and value for money. The 900 series continues to be a popular choice in education, research, medicine, industry and amongst environmentalists and enthusiasts.

Condition: like new (used), Year of construction: 2022, operating hours: 13,394 h, functionality: fully functional, Battery-powered high-performance sweeping/scrubbing machine Scrub and sweep in one pass: with the M17 battery-powered ride-on scrubber-dryer from Tennant® Without chemicals, but with ec-H2O™ technology and ionized water: This is how you clean floors economically and environmentally consciously with the Tennant® M17 ride-on scrubber-dryer. In addition to the environmentally friendly cleaning technology, you benefit from the ease of use of the cleaning machine - whether in use or during maintenance. Conveniently inspect suction feet, brushes and filters via tool-free access points. The double side sweeping brushes also enlarge the cleaning path and ensure highly productive sweeping and scrubbing. The Touch-n-Go™ control panel integrated in the steering wheel enables intuitive 1-hand operation. This allows the driver to keep both hands on the steering wheel and steer the industrial scrubber-drier safely. The chemical-free ec-H2O™ technology effectively removes dirt and leaves floors without chemical residue. This improves traction and prevents slipping accidents when cleaning with the Tennant® M17 ride-on scrubber-dryer. With 2,500 psi high-pressure cleaner for removing coarse dirt Area of application: Industry Voltage: 36 V Battery voltage: 36 V/per unit Charger: external Direction of travel: Reverse, forward Dirty water tank capacity: 346 l Working width: 1220 mm Brush speed: 500 rpm Brush motor power: 1125 W Automatic brush switch-off: yes Number of wheels: 3 Wheel width: 127 mm Operator cockpit: yes Suction foot width: 1245 mm Body color: green Width: 1370 mm Drive: Battery Brush material: Polypropylene (PP) Rim material: Iron Sweeping width side brushes: 785 mm Sweeping width without side brushes: 915 mm Sweeping capacity with 2 side brushes theoretical: 17560 m²/h Sweeper type: Ride-on sweeper Number of sweeping blades: 1 Power transmission: V-belt Steering wheel material: PU foam Length: 2850 mm Castors Material: Polypropylene (PP), nylon, polyester Dirt container volume: 45 l Side brushes foldable: yes UVP: 120.307 € Technical features Sweeping rollers + side brushes Height-adjustable: depending on brush pressure Practical area coverage: 10,310 sqm incl. Ech2o Climbing ability: transport (empty) 20%, transport gross weight 13%, working mode 11% Consumption: Runtime 2.9 hours Operation: Battery Battery type: Lead-acid battery Battery capacity: 775 Ah/per unit Driving speed: 5 - 9 km/h Noise level in dB(A): 75 dB(A) Fresh water tank capacity: 285 l Theoretical area coverage: 17560 m²/h Brush diameter: 230 mm Brush contact pressure: 250 kg Tire material: Polyurethane (PU) Non-marking wheels: yes Wheel diameter: 381 mm Suction lip material: Linatex Suction motor power: 1200 W Frame color: grey Height: 1480 mm Own weight: 2165 kg Number of batteries: 1 Weight without battery: 1515 kg Filter area: 51000 cm² Sweeping width with 2 side brushes: 1700 mm Sweeping capacity with 2 side brushes practical: 10310 m²/h Sweeper filter cleaning: electric Sweeping principle: Direct sweeping system Bodpfev Hqh Hsx Aqwjwt Body material: ABS plastic Running time: 6.5 h Number of swivel castors: 1 Reverse gear: yes Number of side brushes: 2 Seat material: Plastic Turning radius: 3003 mm Year of construction: 2022 Financing through our bank is also possible. komplett-konzept.leasingo.de

Condition: excellent (used), Year of construction: 2015, operating hours: 300 h, functionality: fully functional, power: 30.16 kW (41.01 HP), fuel type: diesel, color: red, fuel: diesel, driver cabin: day cab, gearing type: hydrostat, Equipment: all wheel drive, hydraulics, HAKO Citymaster 1250 Comfort Municipal implement carrier with 2-brush suction-sweeper unit This Hako Citymaster 1250 was first put into operation in 2015, has only approx. 300 total operating hours according to the hour meter, and is in very good overall condition with normal signs of use and wear. It has just undergone a major service and is immediately ready for operation. Comparable new price: €110,000! Additional accessories include a flatbed platform, a set of wide tires, and a municipal quick-coupling frame (KAT-Communal). The sale is conducted as used equipment with no returns, warranty or guarantee. - Net price: €39,900 // Gross price: €47,481 - Viewing / test drive gladly possible Bjdpeyglx Djfx Aqwewt - Nationwide delivery can be arranged; costs depend on distance. - We are happy to provide an attractive leasing or financing offer through our leasing partner!

Condition: used, Donaldson Torit industrial dust collection system, main silo is approx. 40' tall with 2 blower fans, includes all duct work, dust collection system includes duct work inside building, does not include dust container shown in photo, unit only, 1 blower fan has 150 HP, 3 phase motor, control panel has Allen Bradley Panel View Plus 1000 touch screen display, winning bidder responsible for proper removal. Please contact auction manager for removal information of unit. Bsdpfjxdc Tfex Aqwjwt

Condition: new, Year of construction: 2024, Field of application: Construction Please contact Kristoff Van Havere for more information - Side broom - Hydraulic drip tray - Quick adapter for Avant Bodpfx Aexdhgdsqwowt

Condition: good (used), Year of construction: 2014, first registration: 06/2014, fuel type: diesel, color: red, fuel: diesel, Swingo 200 + - 4 wheel steering - Dutch Registration Year of manufacture: 30-6-2014 WSVS462S2E1730012 TZR-38-N = Further information = Intended use: Internal logistics Bjdpexcnynefx Aqwowt Permissible total weight: 4,500 kg Technical condition: good Visual condition: good Registration number: TZR-38-N Contact VAEX The Truck Traders for more information.

Condition: used, Speed-Tech Equipment horizontal cardboard baler, bales are approx. 1200 lbs., 6' long x 36" wide x approx. 28" tall, 3 phase, in working condition, winning bidder responsible for proper removal. Bwedpjxd D Nzjfx Aqwst

Condition: used, Year of construction: 2021, operating hours: 650 h, functionality: fully functional, machine/vehicle number: WK3442232L4230097, mileage: 1,569 km, power: 48 kW (65.26 HP), first registration: 01/2021, overall weight: 3,500 kg, fuel type: diesel, color: blue, next inspection (TÜV): 01/2025, driver cabin: day cab, emission class: euro4, Equipment: had accident, Kärcher MC 130 Plus – Condition, History, and Usage The offered sweeper, Kärcher MC 130 Plus, is in very good condition. The vehicle has only had one previous owner—the City of Hamm. In 2021, we took over the sweeper. At that time, it was fully functional but had a minor side panel damage, which did not affect its operability. We professionally repaired this damage. From 2021 to 2022, the sweeper was exclusively used at one of our properties. Since 2023, the machine has been stored in our facility and has only been used internally once a month for cleaning the warehouse floor. As we will no longer be offering underground car park cleaning or sweeping services in the future, we have decided to sell the sweeper. Bjdpfjx Rb D Eox Aqwowt Additionally, a scrub deck for underground car park cleaning is available for an extra €6,000. The scrub deck was purchased from Kärcher by us in 2022 (demonstration unit) and has never been used. A photo of the scrub deck is available.

Condition: used, Year of construction: 2001, operating hours: 1 h, mileage: 245,000 km, power: 206 kW (280.08 HP), fuel type: diesel, fuel: diesel, emission class: euro3, Field of application: Grounds care Bwodpfx Asx R U Svoqwst Empty weight: 18.000 kg Please contact Emal Jaweed for more information

Condition: good (used), mileage: 376,299 km, power: 279 kW (379.33 HP), first registration: 08/2005, fuel type: diesel, axle configuration: 6x2, fuel: diesel, color: orange, driver cabin: day cab, gearing type: mechanical, number of gears: 16, emission class: euro3, suspension: steel-air, Year of construction: 2005, Equipment: ABS, differential lock, = Additional Options and Accessories = - Speed limiter - Power take-off (PTO) = Remarks = DAF CF 380 6x2 Roadcleaner Bekker Lagram High pressure pump Uraca P3-10 Centrifugal pump ZLKD 100/200 Good working condition Bedpswwtiaofx Aqwewt = Further Information = Axle configuration Front axle: Steerable; Tire tread left: 50%; Tire tread right: 50%; Suspension: leaf suspension Rear axle 1: Steerable; Tire tread left: 40%; Tire tread right: 40%; Suspension: air suspension Rear axle 2: Twin tires; Differential lock; Tire tread inner left: 60%; Tire tread outer left: 60%; Tire tread inner right: 60%; Tire tread outer right: 60%; Reduction: single reduction; Suspension: air suspension Weights Unladen weight: 18,580 kg Payload: 7,420 kg Gross vehicle weight: 26,000 kg Condition Technical condition: good Visual condition: good Damages: none Further information For more information, please contact Gerrit Haverhoek or Piet Haverhoek.

Condition: good (used), Year of construction: 2020, operating hours: 2,640 h, functionality: fully functional, power: 75 kW (101.97 HP), fuel type: diesel, driver cabin: day cab, gearing type: hydrostat, emission class: euro6, Equipment: air conditioning, hydraulics, soot filter, KÄRCHER MC-250 Vacuum Sweeper Technical Data: Drive type: Diesel Drive: Two-wheel drive Engine manufacturer: VM Engine power (kW): 75 Emission standard: Euro 6e Travel speed (km/h): 60 Working width with 2 side brushes (mm): 2,625 Maximum working width with 3 side brushes (mm): 2,710 Hopper capacity (l): 2,500 Fresh water tank (l): 200 Optional fresh water tank (l): 390 Permitted total weight (kg): 6,000 Dimensions (L × W × H) (mm): 4,491 x 1,300 x 1,999 Bwodpfx Aqewzwakswot Particle filter Comfort seat Heating and air conditioning Heating Hopper: 2,500 l Radio system Rotating warning beacon Water tank: 120, 400 l Year-round use This KÄRCHER MC250 was built in 2020, has only 2,640 total operating hours and 1,820 sweeping hours according to the counter, and is in good overall condition with typical signs of use and wear, immediately ready for operation. Comparable new price: €200,000! - Gross price: €59,900 // Net price: €50,336 - Viewing / test drive possible by arrangement - Nationwide shipping can be organized. Shipping costs depend on distance! - Attractive leasing/financing offers available through our leasing partner—contact us for details!

Condition: new, Year of construction: 2025, functionality: fully functional, working width: 400 mm, area performance: 1,200 m²/h, overall weight: 22 kg, warranty duration: 12 months, tank capacity: 4 l, water tank capacity: 4 l, I am offering the innovative Aventurier Artist 1 SE cleaning device, which combines effective scrubbing and debris collection in a single pass. This is a professional machine designed for daily cleanliness maintenance where precision, convenience, and operational efficiency are essential—ideal for schools, offices, clinics, hotels, restaurants, and small commercial spaces. Key features: • Rotating cleaning head – enables easy maneuvering and access to hard-to-reach areas: corners, edges, under furniture. • Compact size and ergonomic design – adjustable tilt angle allows adaptation to the operator's height, ensuring comfort even during prolonged use. • Intuitive operation – the touch control panel allows quick and easy adjustment of the operating mode to the specific task and surface type. • Versatility – effectively removes dirt from all types of hard flooring, including porcelain tiles, concrete, stone, and vinyl panels. • Quiet operation – perfect for use during opening hours and in noise-sensitive environments. Technical specifications: Theoretical performance: 1000–1200 m2/h Working width: 40 cm Brush pressure: 15 kg Vacuum pressure: 8000 Pa Brush rotation speed: 350 rpm Average water consumption: 100–140 l/m2 Tank capacity: clean water – 4 l / dirty water – 4 l Operating time: Eco mode 150 min / Turbo mode 120 min Charging time: 100 min / per battery Noise level: 60 dB (Eco mode) / 68 dB (Turbo mode) Cleaning modes: Eco/Auto/Turbo/Sterilization/Deep clean Dimensions: 110.4 x 43.9 x 34.6 cm Gross weight: 22 kg Bwsdpfxowz Nr Ee Aqwot Device characteristics: • Equipped with a HEPA filter for effective filtration and disinfection. • High-resolution LCD display + intelligent voice system • Easy removal of the dirty water tank enables convenient cleaning, preventing unpleasant odors • Clean water tank with dual inlets suitable for all types of faucets • Extended battery run time – up to 2.5 hours on a single charge! • Edge cleaning system • Antibacterial body Equipment included: Battery Disc brush Squeegee blade HEPA filter LED lighting Wi-Fi

Condition: excellent (used), Year of construction: 2018, operating hours: 2,840 h, functionality: fully functional, power: 35.3 kW (47.99 HP), KÄRCHER MC130 Tool Carrier / Suction Sweeper with 2-brush suction sweeping unit This KÄRCHER MC-130 was first commissioned in 2018, has 1,385 sweeping hours, 2,890 total operating hours and 10,460 km according to the odometer. The machine is in a well-maintained overall condition with the typical signs of use and wear for this equipment class, recently serviced and ready for immediate operation. Net price €29,900 // Gross price €35,581 Bedpfxsw Ac Tre Aqwjwt - Viewing / test drive available upon request - Nationwide shipping can be arranged, costs depend on distance - Financing / leasing can be tailored to your requirements