Which of the following is a critical factor in ensuring a load is secure before lifting?

Verification of the weight and rigging points used is essential because it directly impacts the safety of the lift. Properly understanding the load's weight ensures that the crane's capacity is not exceeded, minimizing the risk of equipment failure or accidents. Additionally, ensuring that the rigging points are appropriate and secure is vital for maintaining balanced lifting and preventing slippage or mishaps during operation. Rigging points must be carefully inspected to make sure they are rated for the load they are supporting and are in good condition. This comprehensive assessment is a fundamental part of safe lifting practices, as failures can lead to severe incidents that jeopardize both operator safety and equipment integrity.

Meanwhile, while visual inspection of the load's appearance could provide some relevant information, it cannot measure weight or check the effectiveness of rigging points. Similarly, assessing the load's color holds no relevance to its stability or safety, and checking the weather conditions, although important for planning, is not as critical as ensuring the load itself is secure before lifting.