What swimwear and equipment rules do officials check?

World Aquatics rules (applied by SSA at national competitions):

• Swimmers must wear a swimsuit and may wear goggles and a cap. Nothing else may cover the body.
• Women's suits must not cover the neck, extend past the shoulders or go below the knee (one or two pieces allowed). Men's suits must be one piece and must not go above the navel or below the knee.
• Suits must be non-transparent, in good taste, and on the World Aquatics List of Approved Swimwear.
• No device that may aid speed, buoyancy or endurance, such as webbed gloves, fins or adhesive substances.
• Tape is allowed on one or two fingers or toes only if needed to treat or protect an injury.
• A data-collection device is allowed only if it can't transmit data, sounds or signals to the swimmer and can't aid performance.

SSA advertising rules:

• Only official club or provincial team caps; two caps may be worn if both comply.
• Cap: one manufacturer's logo up to 20 cm² on the front; team or province name up to 32 cm² on each side (a team sponsor's logo of up to 32 cm² may replace it on one side).
• Suit: one sponsor's logo and one manufacturer's logo, each up to 30 cm² when worn.

Where a call room is used, Call Room Judges report possible swimwear or advertising breaches to the Call Room Supervisor, who decides and reports any breach to the Referee.