Important news for flying to US: Powdery substance over 350 grams not allowed in hand bag

From next Saturday (June 30) passengers flying to the United States may not be allowed to carry more than 12 ounce or about 350 grams of powdery substance in hand bags. The US Transportation Security Administration (TSA) has enacted this rule after a foiled attempt to put an improvised explosive device using powder explosives on a Gulf carrier in Australia last year. Airlines are advising US-bound flyers to put such things in check-in bags to avoid extra screening of the same and possibly being thrown if the security personnel are not sure what it is.
Air India has a number of daily nonstops from Delhi and Mumbai to US destinations like New York, Newark, Chicago, Washington an San Francisco. United has a daily direct from Newark to Delhi and Mumbai. Delta will start flights to Mumbai next year. From next Saturday everyone traveling with powdery substances including dry spices, talcum or cosmetic powders will need to check them in if carrying more than 350 grams that stuff.

TSA says “powder-like substances greater than 12 ounce/350 ml must be placed in a separate bin for X-ray screening. They may require additional screening and containers may need to be opened. For your convenience, we encourage you to place non-essential powders greater than 12 ounce in checked bags.”
Airlines have accordingly started advising passengers.
Singapore Airlines says on its website in a June 18 post: “Additional security measures for non-stop US-bound flights: TSA may require customers travelling on non-stop flights to US to undergo enhanced security measures. Such checks may include the inspection of powder-like substances where powder-like substances that are 12 ounce (350ml) or larger will not be allowed for carriage in the cabin. Customers are advised to place such items in their checked baggage.”
“Medically-prescribed powder-like substances, baby formula, human remains and duty-free powder containers inside a properly sealed secure tamper evident bag (STEB) may be brought into the cabin. Customers are advised to proceed to the boarding gates early to allow sufficient time for the enhanced security measures,” Singapore Airlines says.
American Airlines’ website says: “Carry-on restriction: powder-like substances. For international travel to the US, powder-like substances over 12 ounce/350 ml should be placed in checked bags. Powders over 12 ounce/350 ml in carry-on bags may be prohibited. Effective June 30, 2018.”